BTZS ExpoDev vs Technical Camera Usage & Stats
BTZS ExpoDev is the companion app for BTZS Plotter for Windows that allows you to more accurately expose traditional B&W films using film test data from BTZS film tests.
"BTZS meets the iPhone. It's the perfect match of Phil Davis' BTZS with the same device that the rest of my life is on." - Robert Levittan
"It has liberated me from having to worry about my negatives, so that I can direct my attention to the important process of making a photograph." - Laura Campbell
"Liberation for the traditional film photographer." - Bill Waldron
*** Note: This app cannot be used without having your own BTZS Film Profiles that have been analyzed and exported by the BTZS Plotter for Windows application. ***
BTZS ExpoDev is the newest generation of ExpoDev for Apple iOS devices. ExpoDev allows you to use your BTZS test Film Profiles to accurately calculate B&W film exposures in the field for consistently exposed negatives that are easier to print in the darkroom. ExpoDev was designed for Large Format film photographers working in any traditional or alternative process (including hybrid processes such as film scanning).
Among the many features in BTZS ExpoDev are:
◆ An exposure record keeping system to keep track of all of your film exposures, allowing you to view the exposure details and the development time to use when back from the field
◆ Manages your lists of Film Profiles, lenses, and filters for fast & easy selection when making exposures
◆ Support for both BZTS Incident and traditional Zone System metering methods
◆ Interactively calculates the SBR, Average Gradient, and the EFS for each scene while metering
◆ Support for user-specified filter factors and Large Format bellows extension compensation
◆ A powerful Depth of Field calculator with selectable Circle of Confusion that supports 3 DOF calculation modes (Aperture/Distance, Near/Far Distances, and Focus Rail Spread)
◆ DOF calculator supports both metric and imperial measurement modes
◆ Calculates exposure by either selecting the Aperture or Shutter speed to use
◆ Supports Apertures down to f/2048 (perfect for pinhole work) and Shutter speeds up to 6 hours
◆ An integrated exposure timer than can handle exposure times up to 12 hours
◆ Sophisticated reciprocity failure adjustments for both exposure and development time that are based on lab-produced data for over 90 film and developer combinations
◆ and more...
Note: Sample Film Profiles are available for experimentation but they are not a substitute for personal film testing.
- Apple App Store
- Paid
- Photo & Video
Store Rank
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The ultimate still photo app for the conscious image maker - works equally well for serious photography as for organized visual note taking. With a handful of unique features you'll not find anywhere else.
Photos are saved to individual albums created with a specific purpose in mind. Such as different photo shoots or projects, visual shopping lists, recipes from the grandmother's cookbook, things for sale, monthly gas and electricity meter readings - the list is endless. These uses need different image qualities and sizes (you'll seldom make a large print of a meter reading, for example), so the app has:
• Album specific image quality, color space (wide color capable devices only) and geotagging settings.
• Selectable image quality with full, half, quarter, high color fidelity quarter HQ sizes and a super tiny 0.48 megapixel 800x600 JPG, as well as RAW and RAW+JPG on devices supporting RAW capture. The 800x600 JPG is up to 20 times smaller than a regular JPG, making it extremely gentle with your mobile plan's data allowance.
• Color space can be set to Display P3, Adobe RGB or sRGB for JPG files and Adobe RGB or sRGB for RAW previews.
• Home screen Quick Actions for selecting the last recently used three albums.
Unique features include:
• Framing Previsor for showing on the wide angle camera's image what the telephoto camera would see.* Also works with wide converters.
• Highlight and shadow alerts.
• Protective exposure metering.
• Auto ISO with minimum, maximum and minimum shutter speed settings.
• Real time distortion correction for wide angle converters via correction profiles, as well as a custom converter for other lenses.*
• Selectable screen frame rate to balance between fluid experience and power saving, and to avoid flicker with lighting running on 50Hz mains frequency.
• TIFF/EP compliant DNG files with support for wide color and full resolution embedded previews.
* Utilizes the time-tested precise simulation and distortion correction engines of our Mark II Artist's Viewfinder app.
Other notable features:
• Manual control for ISO and shutter speed in 1/3 stop increments.
• Manual focus with focus peaking. Selectable peaking color.
• Exposure compensation up to +/-5 stops.
• Exposure and focus lock.
• Continuous and single AF modes.
• Grid display with 2x2, 3x3 and 8x6 choices.
• Luminance only Black & White mode.
• Artist and copyright metadata. The copyright template supports tokens for the current year (so it's always up-to-date), artist name and the copyright symbol.
• Four user-assignable Smart Function Keys to bring most-used functions to a single tap distance, with 7 functions to choose from.
• Completely neutral viewing to avoid interfering with your color vision during composition.
• Fully color managed, from capture to display, including color-correct display of wide color RAW images.
Technical Camera only supports the back camera(s) in still photography mode. No videos or selfies. No fancy filters.
The Framing Previsor requires a dual-camera device or a wide converter lens.
The complete list of supported wide converter lenses can be found on the Tech Specs page: https://www.direstudio.com/technical-camera/tech-specs/
For more information we recommend to check out our Technical Camera How To's: https://www.direstudio.com/technical-camera/how-tos/
- Apple App Store
- Paid
- Photo & Video
Store Rank
- -
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BTZS ExpoDev VS.
Technical Camera
December 24, 2024