If L1 ≠ L2 focus manually will not be accurate, If L2 ≠ L3 Auto focus will not be accurate,Some frequent AF front or back focus cameras may be this reason. Test Focusing Screen 1 Using AF lens to test focus -Employ path L3 to adjust path L1 (Fit for split-image screens). Freedom Scientific provides software solutions for blind and low vision needs. Whether you are looking for a screen reader, like our world renowned JAWS software or a magnification software such as ZoomText, we have a variety of solutions to meet your specific needs. For more information on using the Focus Blue, visit the Braille Displays Documentation page. This firmware update adds the Power 1 2 3 feature. Freedom Scientific Focus 14, 40, and 80 Blue braille displays will now have the ability to switch between an active USB connection and a Bluetooth connection with any paired Bluetooth device. For more information on using the Focus Blue, visit the Braille Displays Documentation page. This firmware update adds the Power 1 2 3 feature. Freedom Scientific Focus 14, 40, and 80 Blue braille displays will now have the ability to switch between an active USB connection and a Bluetooth connection with any paired Bluetooth device.
Hello, everybody! We are supposed to have the usual lens teardown today but I am too lazy and tired today to prepare the pictures and commentaries so I will just write a short entry this time around. I am also very busy in our studio because my cute assistant is currently working off-site for a couple of months. She should be back by the end of this month.
Introduction:
When I still had the D7200, I was always straining my eyes at the tiny DX viewfinder every time I used a manual focus lens with it. I focus using the focusing scale so I generally get a nice and focused picture when I am using the lens stopped-down. Shooting the lens at it’s biggest aperture is another story and I had to find a better solution for this.
The first solution that I thought about was using focusing screens! You can buy one for any camera or ask a shop to trim one for you but I am cheap so I simply opted to DIY the screen myself to save some money. I ended up saving enough money that if ever I failed at this, I would have enough money to attempt 3 more times!
I got a new K-type screen for the Nikon FM3A. The screen will not fit the D7200 because it is 2x as big and the picture above illustrates this point. The D7200’s screen came off rather easily after I unlatched the braces. There are a couple of guides on the web that will teach you how to do this so I am not going to show it here.
IMPORTANT: Use a clean cotton glove when handling the screens and avoid touching the matte surface of the screen. As soon as you removed the screen from it’s case, cover the matte side of the screen with 3M Magic Tape. The Magic Tape will not leave any adhesive marks and if it did, you can easily wipe it off. You can also write on it’s surface if you need to and I always find this very handy. You may want to practice on an old junk screen.
Before you start doing anything to the K-type screen, you must first measure how much you should trim from it in order to make it fit the D7200. Get a calliper and measure as carefully as you can, divide the difference by 2 and you get how much you should trim away from both edges. Do this again for the sides of the screen. I used a strip of 3M Magic Tape to mark where I should trim, this tape will also protects the screen from scratches.
As soon as you got your measurements ready, superimpose the D7200’s screen on top of the new screen and see if you got a nice fit. You have to centre it as close as possible since you want to have the new screen’s prism to be in line with the central AF point. This is not possible most of the time but you should try your best to get it right. Many people report of the central AF point not lining up with the centre of the screen even if they used branded screens or cheap knock-off screens from mainland china.
Now that you got the matte side of the screen completely covered and the shiny part of the screen partially covered (unwanted parts exposed), you are now ready to trim away at the extra material! These screens are made of acrylic it seems, you may be tempted to use your plastic scriber on it and snap the excess material away but I will tell you now to stop it and think of another way. While scribing will leave a nice and clean cut, you also run the risk of ruining your screen when it cracks outside the line. This is a huge possibility and I do not want you to waste money attempting this.
What I recommend doing is to grind away at the material with a Dremel on a stand. Simply grind away enough material until you are just 1mm away from where you wanted the line to be and then use a fine file to get finish it off. A fine sandpaper is also nice for finishing the rough edges. Slowly work on one edge at a time until you get all 4 edges trimmed. Place the screen on top of the original screen and see if you got a good fit. A small precision saw is also a good idea.
Peel away the Magic Tape and remove any residues by pressing a fresh tape on the residue and pull away the tape at an angle. If this did not work then you are screwed! You will need to use a gentle solvent to wipe away the junk and this will risk ruining the matte prism or the shiny side of the screen. I also cleaned my screen with dish washing liquid and warm water just in case and carefully dry it with canned air.
Once you are satisfied with your handiwork, place the new screen into the mirror box and you should end up with something like what I have below. Be sure that the screen is facing in the correct direction!
I got it right where I wanted it but it is less than a millimetre off – not bad at all. This really helped a lot for rough focus acquisition, specially if you have bad eyesight where focusing in the dark becomes really challenging.
UPDATE:
Frank Fremerey & Bjørn Rørslett said:
“www.focusingscreen.com is the correct URL for the Taiwanese company”
Thank you for correcting this, no wonder I am getting a dead link! They are currently the last reputable company doing this. Sadly, the Canadian company Katzeye went belly-up…
Conclusion:
While this mod is helpful for general photography, I found that the prism gets in the way when I needed to use the camera for macro photography so I got the old screen back after a few weeks of using the D7200 in this manner. The focusing screen is now stored safely and is slowly gathering dust because I have not used it for around a year now.
I would like to add that using lenses that is slower then f/4 will make your screen dark. It is a problem for manual focus cameras and it is still a problem for DSLR’s. I would also like to add that having the focusing screen on a DSLR or any recent film Nikons will not affect the auto-focus performance of the camera. All DSLR’s use a semitransparent pellicle mirror to meter and autofocus. The AF/metering module is tucked neatly under the mirror so it will never have any effect whatsoever because this module and the prism/focusing screen are both self-contained. Having mentioned this, you may notice at times that the camera may lock on an object in focus but it looks like the object is not focused properly when viewed from the split prism and the previous issue of the 2 modules having very little to do with each other is the cause. That is why using Live View to calibrate your focusing is the most accurate way to determine focus tolerances.
I hope that you enjoyed and learned something from this post. I just wanted to show you that you can save money by doing something yourself provided you have the proper tools for the job and some know-how. There are focusing screens coming from mainland china and you can try and order them just for the heck of it. They are reported to be of poor make and dark. If you want to pay for quality then you should look for Katzeye. The company is now dead but they will still sell any left-over stocks available. Another good company is focusingscreen.com, this Taiwanese company will cut and trim original screens from the big makers to fit any DSLR or film camera so the quality of the screens themselves are great. It will take them a couple of days to source and process your screens,though. I recommend that you buy from them and skip the cheap “Made in China(PRoC)” brands so that they will not end up like Katzeye. They were the best in the industry and their good Opti-Brite fresnel screens were fantastic by many people’s accounts.
The previous blog post drained me of energy as it took plenty of effort to write. I hope that resting a bit will help me regain my strength, I am probably burnt-out from the busy life at work and home. Please take plenty of rest yourself. Regards, Ric.
Help Support this Blog:
Maintaining this blog requires money to operate. If you think that this site has helped you or you want to show your support by helping with the upkeep of this site, you can simple make a small donation to my paypal.com account ([email protected]). Money is not my prime motivation for this blog and I believe that I have enough to run this but you can help me make this site (and the companion facebook page) grow.
Helping support this site will ensure that this will be kept going as long as I have the time and energy for this. I would appreciate it if you just leave out your name or details like your country and other information so that the donations will totally be anonymous it is at all possible. This is a labor of love and I intend to keep it that way for as long as I can. Carbon copy cloner 4 1 4 (4188) download free. Ric.
Want to get the update or having issues updating? Learn more.
iOS 14.0.1
This update includes bug fixes for your iPhone.
- Fixes an issue that could cause default browser and mail settings to reset after restarting your iPhone
- Addresses an issue that could prevent camera previews from displaying on iPhone 7 and iPhone 7 Plus
- Fixes an issue that could prevent your iPhone from connecting to Wi-Fi networks
- Resolves an issue that could prevent sending email with some mail providers
- Addresses an issue that could prevent images from appearing in the News widget
For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222
iOS 14
iOS 14 updates the core experience on iPhone, includes significant app updates, and other new features.
All-new widgets
- Redesigned widgets can be placed right on the Home Screen
- Small, medium and large widget sizes allow you to pick the amount of information to display
- Widget stacks make the most of your Home Screen space and the Smart Stack uses on-device intelligence to surface the right widget at the right time
- Widget gallery includes all available widgets to browse and choose from
- Redesigned Apple widgets for Weather, Clock, Calendar, News, Maps, Fitness, Photos, Reminders, Stocks, Music, TV, Tips, Notes, Shortcuts, Battery, Screen Time, Files, Podcasts, and Siri Suggestions
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App Library
- The App Library automatically organizes all of your apps into categories
- The Suggestions category uses on-device intelligence to show apps you’re likely to be looking for based on factors like time of day or location
- The Recently Added category shows apps that were recently downloaded from the App Store, as well as App Clips that were recently launched
- Ability to hide Home Screen pages to get to the App Library even faster by tapping on the dots at the bottom of the screen while in jiggle mode
Compact design
- Incoming Phone and FaceTime calls appear as a banner at the top of the screen
- Siri has a compact design that allows you to refer to information onscreen and seamlessly launch into your next task
- Picture in Picture enables watching a video or taking a FaceTime call while you use another app
Messages
- Pinned conversations keep up to nine of your favorite message threads at the top of the list
- Mentions let you direct a message to an individual in a group conversation
- Inline replies let you reply to a specific message and see all related messages in their own view
- Group photos can be customized for a shared group look
Memoji
- 11 new hairstyles and 19 new headwear styles to customize your Memoji
- New Memoji stickers to send a fist bump, hug or blush
- Six added age options
- Face covering options
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Maps
- Cycling directions provide routes along bike lanes, bike paths, and bike-friendly roads, taking into consideration elevation or how busy a street is
- Guides offer recommendations for places to eat, meet friends, or explore, curated by a selection of trusted brands
- Electric vehicle routing helps you plan trips with supported electric vehicles and automatically adds charging stops along your route
- Congestion zones help you route around or through active zones in cities like London or Paris
- Speed cameras let you know when you’re approaching speed and red-light cameras along your route
- Refine Location enables a highly accurate location and orientation when in urban areas with a poor GPS signal
App Clips
- An App Clip is a small part of an app that developers can create and that is discoverable at the moment you need it, and focused on a specific task
- Small by design, App Clips are usable in a few seconds
- Discover App Clips through tapping NFC tags or scanning QR codes, from Messages, Maps, and Safari
- Recently used App Clips show up in App Library’s Recently Added category, and you can download the full version of the app if you want to keep it around
Translate
- The new Translate app is designed for conversations and can work completely offline so your conversations stay private
- A split-screen design in conversation mode has a single microphone button that automatically detects which of the selected languages is being spoken and transcribes the original and translated text on the correct sides of the screen
- Attention mode shows translations in larger text so you can capture someone's attention
- Voice and text translations are supported for any combination of 11 languages
Siri
- A new compact design allows you to refer to information onscreen and seamlessly launch into your next task
- Expanded knowledge brings 20x more facts than three years ago
- Web answers help find answers to a broader set of questions using information from across the internet
- Audio messages can be sent with Siri on iOS and CarPlay
- Expanded language support for the new Siri voice and Siri translation
Search
- One place where you can find everything: search for apps, contacts, files, quick information like weather and stocks, common knowledge questions about people or places, or even quickly start a web search
- Top Hit results show the most relevant information including apps, contacts, knowledge, points of interest and websites
- Quick Launcher allows you to launch an app or website by typing a few characters
- As-you-type search suggestions show more relevant results as soon as you start typing
- Web search suggestions to launch Safari and get the most relevant web results
- Start a search in apps like Mail, Messages and Files
Home
- Suggested automations help you set up automations with just a tap
- A visual status at the top of the Home app gives you a summary of accessories that require your attention
- Dynamic suggestions of the most relevant accessories and scenes appear in Home controls in Control Center
- Adaptive Lighting automatically adjusts the color of your smart light bulbs throughout the day to maximize comfort and productivity
- Face Recognition for video cameras and doorbells uses on-device intelligence to let you know who is there based on the people you’ve tagged in your Photos app and recent visitors you identify in the Home app
- Activity Zones for video cameras and doorbells captures video or sends you a notification only when motion is detected in areas you define
Safari
- Improved performance with an even faster JavaScript engine
- A Privacy Report shows cross-site trackers that are being blocked by Intelligent Tracking Prevention
- Password monitoring securely screens your saved passwords for any that may have been involved in a data breach
- Web page translation (beta) translates entire web pages in English, Spanish, Simplified Chinese, French, German, Russian or Brazilian Portuguese
Weather
- Next-hour precipitation chart shows a minute-by-minute forecast of the intensity of rain or snow over the coming hour for the U.S.
- Severe weather information displays government-issued alerts about certain severe weather events including tornados, winter storms, flash floods and more, for the U.S., Europe, Japan, Canada, and Australia
AirPods
- Spatial audio with dynamic head tracking on AirPods Pro places sounds anywhere in space, creating an immersive surround sound experience
- Automatic device switching transfers audio from your iPhone, iPad, iPod touch, and Mac
- Battery notifications let you know if you need to charge your AirPods
Privacy
- A recording indicator is displayed whenever an app has access to the microphone or camera
- Approximate location can now be shared with an app, rather than sharing your precise location
- Limited Photos library access gives you the option to share only selected photos with an app whenever an app asks for access
- App and web developers can now offer the option for you to upgrade your existing accounts to Sign in with Apple
Accessibility
- Back Tap is a quick way to trigger accessibility features by tapping on the back of your iPhone
- Headphone accommodations amplify soft sounds and adjust certain frequencies, customized for an individual’s hearing
- Sign language prominence in FaceTime detects when a participant is using sign language and makes the person prominent in a Group FaceTime call
- Sound Recognition uses on-device intelligence to detect and identify important sounds such as alarms, and alerts you to them using notifications
- VoiceOver Recognition uses on-device intelligence to recognize elements on your screen to improve VoiceOver support for app and web experiences
- Image descriptions read complete-sentence descriptions of images and photos within apps and on the web
- Text recognition speaks the text identified within images and photos
- Screen Recognition automatically detects interface controls to aid in navigating apps
This release also includes other features and improvements.
App Store
- Important details about each app are displayed in a glanceable, scrollable view, including a way to see the games your friends are playing
Apple Arcade
- Coming Soon gives you a sneak peek at upcoming Apple Arcade games and you can automatically download them as soon as they’re released
- See All Games is improved with sorting and filtering by release date, updates, category, controller support and more
- Achievements are browsable right from within the Apple Arcade tab
- Continue Playing makes it easy to resume recently played games across devices
- Game Center dashboard showcases your profile, friends, achievements, leaderboards and more, all from within your game
Apple Cash Family
- Apple Cash can be enabled for up to five family members under 18
- Send money to your child through Messages or by asking Siri
- Notifications for purchases or person to person payments as they occur
- Parental controls to limit who your children can send money to
- Option to turn off Apple Cash for family members under 18
- Shared oversight with another adult in your Family Sharing group
Augmented Reality
- Location Anchors in ARKit 4 enables apps to place AR experiences at a specific geographic coordinate
- Extended face tracking support is extended to the new iPhone SE
- Video textures in RealityKit enable apps to apply video to any part of a scene or virtual object
Camera
- Improved shot-to-shot performance speeds up the time to first shot and makes shooting photos even faster
- QuickTake video can now also be captured on iPhone XS and iPhone XR when in Photo mode
- Quick toggles in Video mode to change video resolution and frame rate from the Camera app
- Updated Night mode capture experience on iPhone 11 and iPhone 11 Pro provides guidance to help you stay steady throughout the capture, as well as an option to cancel the shot mid-capture
- Exposure compensation control lets you lock an exposure value for an entire camera session
- Mirror front camera lets you capture selfies that match the front camera preview
- Improved QR code reading to scan codes, even if they are small or wrapped around objects
CarPlay
- New categories of supported apps for parking, EV charging, and quick food-ordering
- Wallpaper options
- Share ETA and send audio messages with Siri
- Horizontal status bar support for cars with portrait screens
- Chinese and Japanese keyboard support gives users an additional option to search for points of interest
FaceTime
- Improved video quality with up to 1080p resolution on iPhone X and later
- New eye contact feature uses machine learning to subtly adjust the position of your eyes and face to make video calling more natural even when you’re looking at the screen instead of the camera
Files
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- APFS encryption support for external drives
Health
- Wind Down helps you create a pre-bedtime routine with apps and shortcuts, like listening to a relaxing playlist
- Custom sleep schedules help you meet your sleep goals with bedtime reminders and wakeup alarms
- Sleep mode minimizes distractions during Wind Down and Bedtime by turning on Do Not Disturb and simplifying your Lock screen
- Health Checklist helps you track and manage health and safety features in one place
- New Mobility category in the Health app, including metrics like walking speed, double support time, step length, and walking asymmetry
Keyboard and International
- On-device dictation helps protect your privacy by performing all processing completely offline. Dictation in search uses server-based dictation in order to recognize terms you may be searching for from across the Internet.
- Search within the Emoji keyboard using a word or phrase
- Keyboard displays AutoFill suggestions from Contacts for email addresses, phone numbers, and more in apps
- New dictionaries for French-German, Indonesian-English, Japanese-Simplified Chinese, and Polish‑English
- Wubi input method for Simplified Chinese
- Autocorrection support for Irish Gaelic and Norwegian Nynorsk
- Redesigned Japanese Kana keyboard with easier input for numbers
- Mail supports email addresses using non‑Latin languages
Music
- A new Listen Now tab for playing and discovering your favorite music, artists, playlists and mixes
- Autoplay keeps music playing when you reach the end of a song or playlist by finding similar songs to play
- Search now showcases music for your favorite genres and activities, and shows helpful suggestions as you type
- Library filtering helps you find artists, albums, playlists and other items in your library even faster
Notes
- Enhanced actions menu provides easy access to locking, scanning, pinning and deleting
- Top Hits in search surfaces your most relevant search results
- Pinned Notes list can be collapsed or expanded
- Shape recognition enables drawing perfect lines, arcs and other shapes
- Enhanced scanning captures sharper scans and more precise auto-cropping
Photos
- Filter and sort your collection to more easily locate and organize your photos and videos
- Pinch and zoom to quickly find your photos and videos in more places, like Favorites and Shared Albums
- Photos and videos caption support
- Live Photos taken using iOS 14 or iPadOS 14 will autoplay with improved stabilization in Years, Months and Days View
- Memories enhancements provide a more relevant selection of photos and videos and a larger music selection for Memory movies
- Redesigned image picker in apps uses the same smart search from the Photos app to help you easily find content to share
Podcasts
- Listen Now is smarter and includes your personal episode queue and new episodes picked for you
Reminders
- Assign reminders to people you share lists with
- New reminders can be created from the lists screen without having to enter a specific list
- Smart suggestions let you add dates, times and locations with a tap
- Personalized lists with emoji and newly added symbols
- Rearrange or hide smart lists
Settings
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- Option to set your default email and web browser
Shortcuts
- Starter Shortcuts let you get started with a built-in folder of shortcuts, tailored for you
- Shortcuts automations are suggested based on your usage patterns
- Folders let you organize your shortcuts and can be added as widgets to the Home Screen
- New compact design for running shortcuts keeps you in context while you use another app
- New Automation triggers can run shortcuts based on receiving an email or message, your battery level, closing an app and more
- Wind Down Shortcuts provide a collection of relaxing shortcuts to help you get ready for a good night’s sleep
Voice Memos
- Folders help organize your Voice Memos recordings
- Favorites lets you mark your best recordings and quickly access them later
- Smart Folders automatically group together Apple Watch recordings, recently deleted recordings and recordings you marked as Favorites
- Enhance Recording reduces background noise and room reverberation
Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222