MARTIN BAILEY
PHOTOGRAPHY
Photographer • Podcaster • Mentor
Tour Leader• Capture One Ambassador
X-Rite Coloratti • Fine Art Printer
Blog & Podcasts
Tours & Workshops
Recent Posts
Rolleiflex 3.5F TLR Camera and Accessories (Podcast 687)
Film, Gear, Podcast
In this post, I share some of the main features of my new Rolleiflex 3.5F TLR camera, and some of the accessories I've been able to source so far.
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Which External SSD Drive to Buy? (Podcast 686)
Gear, Podcast, Review
In this post, we explore some options for super-fast external SSD drives and provide information to help you avoid some possible pitfalls.
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Urban Weird Photographer Brian Wood-Koiwa (Podcast 685)
Art Talk, Interview, Podcast
An interview with Brian Wood-Koiwa, an urban fine-art photographer who chose Tokyo as a base after traveling the world in the Peace Corps.
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Developing 120 film with ILFORD DD-X in the Lab-Box (Podcast 684)
Film, Podcast, Tutorial
This week I share a video to walk you through developing a roll of 120 format film in the Ars-Imago Lab-Box using Ilford chemicals.
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Skiing SCI-FI-Style with Reuben Krabbe (Podcast 683)
Podcast
Welcome to the world of Reuben Krabbe, who completed his out-of-this-world trilogy of photographs this year with an awesome short film accompaniment.
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The LAB-BOX Daylight Loading Film Tank (Podcast 682)
Film, Gear, Podcast, Tutorial
In this post, I walk you through an illustrated explanation of how to spool a roll of 120 format film into the ingenious Lab-Box ready for development.
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New Apple Photos on Mac OS X and iPad Rocks! (Podcast 681)
Podcast, Review, Tutorial
Apple Photos with iPadOS and Mac OS X Catalina is now so good I've deleted my iPad Portfolio app and saved a bunch of disk space at the same time. Check it out!
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Printing Abstract Masterpieces with Jack Durner (Podcast 680)
Interview, Podcast, Printing
This week, we talk with Jack Durner, the artist behind some beautiful abstract photography that I had the pleasure of printing recently.
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In Conversation with Rick Sammon (Podcast 679)
Interview, Musings, Podcast
This week I'm sharing a joint podcast with world-renowned photographer Rick Sammon, covering a myriad of photography topics, and Rick's 40th book!
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Silence is (NOT) the New No! (Podcast 678)
Business, Musings, Podcast
In this post, I talk about why I believe people should stop using silence as the new "no" in business communication.
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Wordpress Portfolios and Gallery Plugin Options (Podcast 677)
Computers, Podcast, Review
I've recently replaced NextGEN Gallery with the Meow Gallery and Meow Lightbox plugins, alongside Essential Grid, and in this post I explain why.
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Breathing Color Belgian Linen on a Home Made Photo Panel (Podcast 676)
Podcast, Printing, Review
I recently took a look at Breathing Color's new media Belgian Linen and share my findings today, and how to create a home-made panel for your photos.
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Calculate how much of your scene will be in focus!
Depth of Field
See why it's amazing!
Customize your list and stack ND filters!
Neutral Density
Take a look
Learn how camera settings affect exposure
Exposure Shift
Show me!
The only app with truly accurate DoF info!
Pixel Peeper Mode
See why
Helps you to both learn and teach photography
Practical & Educational
Here's how
An Android version will be here very soon!
Coming Soon!
Get Notified!
Photographer's Friend III
Depth of Field Calculator
The Depth of Field Calculator [DoF Calc] is intuitive and easy to use, but provides a level of detail to satisfy even the most discerning photographer! Just select your camera sensor type (35mm full frame, 1.3X 1.5X or 1.6X crop factor, 1-inch, micro 4/3, or one of the medium or large format sizes) then choose your aperture, focal length and focus distance (the approximate distance to your main subject).
The calculator then instantly displays your depth of field including the near limit, far limit, and hyperfocal-distance. If you tap the Hyperfocal-Distance label the focus distance dial is automatically set to the hyperfocal-distance and all displayed information is updated. Tap again and your initially selected focus distance is restored.
Tap the [Focus ft/m] button to toggle between feet and meters. To make this interaction easy to remember, the labels that have a function are blue.
We didn’t have to go this far but thought it was fun to provide apertures down to f/0.7 because there are actual lenses that go that wide, although very rare. You can also increase focal length and/or decrease focus distance to the point that your depth of field is as shallow as 0.1mm, and then we switch to µm (micrometers or micron) and continue to calculate down to single digit µm. That’s 0.0001 cm. Talk about razor thin depth of field! Crazy, but fun to play with, and you never know, you might need this one day.
Pixel Peeper Mode
The first difference is that the calculated depth of field is somewhat shallower in Pixel Peeper mode. This means that you actually have to use a smaller aperture or wider focal length to gain adequate Depth of Field.
Traditionally Depth of Field is calculated assuming sharpness determined in an 8 x 10-inch print viewed at arm’s length, but this can lead to slightly soft images when evaluated at 100% on a computer screen. Enter Pixel Peeper mode!
In Pixel Peeper Mode we recalculate your actual Depth of Field based on your camera's sensor size and megapixels, from which we calculate the Pixel Pitch, Airy Disk size, and Circle of Confusion size.
There is also an option to display diffraction warning color coding for the Airy Disk display and Aperture dial. Green means no problems, amber indicates there’s a risk of seeing effects of diffraction, and red lets you know when your image is most likely diffraction limited.
Note that the Diffraction Warnings are intended as a guide, to show you when there is a possibility of diffraction. We recommend that you test your own lenses and if necessary, you can calibrate the warnings by using a different megapixel count or Custom CoC so that the red warning kicks-in in line with your findings.
Exposure Shift Calculator
When changing exposure on your camera, it’s not always obvious which settings to change to counter adjustments you make. When you adjust your aperture from f/5.6 to f/11, does your shutter speed need to go up, or down, and by how much? How does it affect your ISO?
Enter your current camera settings with the Aperture, Shutter Speed and ISO dials, and watch Photographer’s Friend calculate how changes to one dial affect the others. You can lock any of the three dials to calculate just the other free dial automatically, or turn on Exposure Value Lock to have Photographer’s Friend calculator all settings for you!
The Exposure Value display and lock is invaluable when looking for appropriate settings from a light meter EV readout. We’ve also added a button to send your aperture to the Depth of Field Calculator and another to forward your shutter speed to the Neutral Density Filter Calculator.
The huge range of apertures and ISOs are great for educational purposes. We also included a settings screen to set the upper and lower limits of each dial to match your camera.
Neutral Density Filter Calculator
Enter the shutter speed that you need to get a standard exposure without filter, then tap the filters that you'll attach to your lens and the ND Filter calculator will display your new shutter speed.
A timer is available for shutter speeds of 5 seconds or more. If you get a phone call or need to use another app during a long count-down, just background the app, and it will update when you open it again.
When you first set a timer, we’ll ask for permission for Photographer’s Friend to use Notification Center on your iOS device and we’ll display an alert when the timer finishes.
You’ll ever need this in real life, but the ND Calculator allows stacking of filters for up to 30-year exposures. This is great for understanding how neutral density filters affect the shutter speed and for teaching others when necessary.
To hide filters that you don’t use just slide them to the left. Once filters are hidden, the button below the Shutter Speed dial displays how many filters are hidden. Tap this button to display the hidden filters with a dark background, and slide them to left again to unhide them if necessary. When you finish unhiding filters, click the red button to exit unhide mode.
An Invaluable Education Tool!
We’ve included a scrolling list of links to in-depth articles on Hyperfocal-Distance, Understanding Neutral Density Filters, Understanding Exposure Value, and Circle of Confusion, as well as links to our Podcast and Blog, which has been released weekly since 2005!
There are multi-page help sections with detailed information to help you understand the Depth of Field calculator, the Neutral Density calculator, and the Exposure Shift Calculator. Just swipe through the pages and tap Done to return to the Help tab. Along with the linked articles, you’ll fully understand these topics in no time.
There’s also a link to our Photographer’s Friend Video Tutorials page, with a video to explain how each calculator works.
Photographer’s Friend is an invaluable education tool to both learn and teach photography.
It runs great on iPhones and iPads of all sizes. It also supports split view on iPads that support it, so you can shrink the app down to various sizes and view other apps at the same time!
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The Wildlife of Japan
A portfolio of images from Nagano and mostly Hokkaido, the Northern Island of Japan.
Includes the beautiful Japanese Red-Crowned Cranes, magestic Steller's Sea Eagle and White-Tailed Eagles, Whooper Swans, Northern Red Fox and Ural Owls, among other subjects.
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The Landscapes of Japan
Mostly winter scenes from Hokkaido, the Northern Island of Japan, where Martin has travelled every year since 2003 and has been running popular Tours & Workshops since 2008.
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Complete Namibia
A multitude of images covering a myriad of subjects from Africa's South-Western jewel, Namibia
In this portfolio you'll find jaw-dropping landscapes, beautiful and rugged people, and majestic wildlife.
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Magnificent Iceland
Discover Iceland through Martin's lens and sense of the aesthetic. Sprawling and dynamic landscapes, seductive seascapes and awesome waterfalls.
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All Portfolios
Take a look at our Portfolios page for more work from Antarctica, Greenland, Morocco and many other locations and genres.
There is also a video section with slideshows and a few short movies.
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