Comparison

f8 Lens Toolkit vs BLACKSLATE7

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

f8 Lens Toolkit

This app provides photographers and cinematographers with essential tools for optical calculations. It offers features like depth of field calculation, field of view determination, and lens matching for various camera formats. It's designed to be an indispensable reference tool for professionals and students alike.

Highlights
  • Depth of Field & Hyperfocal Distance Calculator
  • Field of View Calculator
  • Lens Matcher: Equivalent Focal Length & F-Stop
  • Camera Sensor Comparison Tool
  • Lens Coverage Tool
  • Extensive camera and lens database
  • Supports anamorphic shooting and Speedboosters
Features
Read full description

f8 is the fastest and easiest tool for all photographic calculations: Effortlessly find corresponding focal lengths & apertures for different formats, calculate depth of field (DOF), and find field of view for any camera and lens. The sensor comparison and lens coverage tool make this app complete. ◈◈◈ Get professional-grade features & the most intuitive user-interface in its class ◈◈◈ No matter if you are a seasoned pro or a film/photography student, f8 has got you covered. It’s packed with the tools you need and highly customizable to deliver precise calculations for any setup imaginable. It has been proven to be an indispensable tool on any shoot. f8 comes with: • Depth of Field & Hyperfocal Distance Calculator • Field of View Calculator • Lens Matcher: Equivalent Focal Length & F-Stop • Camera Sensor Comparison Tool • Lens Coverage Tool • Thousands of cameras & lenses included • Close Focus & Aperture data for most lenses • Supports anamorphic shooting & Metabones Speedboosters f8 is the perfect companion app and reference tool for Photographers, Cinematographers, Camera Operators, Camera Assistants (1.AC) & VFX Supervisors. ◈◈◈ Download f8 now and have a precise optical toolkit at your fingertips ◈◈◈ ◆ CINE CAMERAS ◆ AJA Cion ARRI Alexa 35, Alexa 65, Alexa Classic, Alexa LF, Alexa Mini, Alexa Mini LF, Alexa SXT, Alexa XT, Amira, D-21 Blackmagic Cinema Camera, Micro Cinema Camera, Micro Studio Camera 4K, Pocket Cinema Camera, Pocket Cinema Camera 4K, Pocket Cinema Camera 6K, Pocket Cinema Camera 6K Pro, Production Camera 4K, Studio Camera 4K, Studio Camera HD, URSA, URSA (Broadcast), URSA 4.6K, URSA Mini 4.6K, URSA Mini 4K, URSA Mini Pro, URSA Mini Pro 12K, URSA Mini Pro 4.6K G2 Canon C100, C100 Mark II, C200, C300, C300 Mark II, C300 Mark III, C500, C500 Mark II, C70, C700 DJI Zenmuse X7 Film 16mm, 35mm, 65mm/70mm, 8mm Freefly Systems Wave Generic Broadcast Ikonoskop A-cam dII Kinefinity KineMAX, KineMini, Mavo, Mavo Edge, Mavo LF, TERRA Panasonic AF101, BGH1, EVA1, HDX 900, VariCam 35, VariCam LT Panavision DXL, DXL2, Genesis Phantom 65, Flex, Flex4K, HD GOLD, Miro LC321S, v2640 ONYX, VEO4K-PL PS-CAM X35 RED Dragon-X, Epic Dragon, Epic-W (Helium), Epic-X, Gemini, Komodo, Monstro-VV, One, Ranger (Gemini), Ranger (Helium), Ranger (Monstro), Raven, Scarlet-W (Dragon), Scarlet-X, Weapon (Dragon-VV), Weapon (Helium) Silicon Imaging SI-2K Sony F23, F3, F35, F5, F55, F65, F900, FS100, FS5, FS5 Mark II, FS7, FS7 Mark II, FS700, FX3, FX6, FX9, HDC-1500R, Venice Weisscam HS-2 Z CAM E2, E2-F6, E2-F8, E2-M4, E2-S6, E2G ◆ PHOTO CAMERAS ◆ Canon 1000D/XS, 100D, 10D, 1100D/T3, 1200D/T5, 1300D/T6, 1D, 1D C, 1D Mark II, 1D Mark III, 1D Mark IV, 1D X, 1D X Mark II, 1D X Mark III, 1Ds, 1Ds Mark II, 1Ds Mark III, 200D/SL2, 20D, 30D, 350D/XT, 400D/XTi, 40D, 450D/XSi, 500D/T1i, 50D, 550D/T2i, 5D, 5D Mark II, 5D Mark III, 5D Mark IV, 5DS, 600D/T3i, 60D, 650D/T4i, 6D, 6D Mark II, 700D/T5i, 70D, 750D/T6i, 760D/T6s, 77D, 7D, 7D Mark II, 800D/T7i, 80D, 850D/T8i, 90D, M50, R, R5, R6, Ra, RP Film (Still) 35mm (135), APS, Large Format, Medium Format, XPan Fujifilm GFX 100, GFX 100S, GFX 50R, GFX 50S, X-A7, X-H1, X-Pro2, X-Pro3, X-S10, X-T2, X-T200, X-T3, X-T4, X100V Hasselblad Digital Medium Format Leica CL, M10/M10-R, M8/M8.2, M9/M9-P, S, S2, SL, SL2, SL2-S Mamiya Leaf Credo Series Nikon D1, D100, D1H, D1x, D200, D2H, D2Hs, D2x, D3, D300, D3000, D300s, D3100, D3200, D3300, D3400, D3s, D3x, D4, D40, D40X, D4s, D50, D500, D5000, D5100, D5300, D5500, D5600, D60, D600, D610, D70, D700, D7000, D70s, D7100, D7200, D750, D7500, D80, D800, D810, D850, D90, DF, Z50, Z6, Z7 Olympus E Series Panasonic GH1, GH2, GH3, GH4, GH5, GH5S, S1, S1H, S1R, S5 Pentax 645D, 645Z, K Series Phase One Achromatic+, IQ Series, P 30+, P 40+, P 45+, P 65+ Sigma fp, fp L, SD1, SD15 Sony A290, A390, A450, A580, A6000, A6300, A6500, A6600, A7 III, A7C, A7r II, A7r III, A7r IV, A7s, A7s II, A7s III, A850, A9, A9 II, A900, A99, SLT-A37K, SLT-A57, SLT-A65, SLT-A77

About

BLACKSLATE7

This app transforms your smartphone into a programmable clapperboard for film and TV production. Easily load custom images or pre-set templates onto a compatible physical slate using NFC technology. Adjust image contrast and create grayscale effects for optimal visual output.

Highlights
  • Program images onto physical slate via NFC
  • Load pre-set SLATE templates
  • Create custom clapperboard images
  • Crop, scale, and rotate images
  • Adjust black/white threshold for contrast
  • Unique dithering control for grayscale simulation
Features
Read full description

TRIBE7’s SLATE is a uniquely re-usable and digitally reconfigurable compact clapperboard, designed for Film and TV production. The BLACKSLATE7 iOS app allows your smartphone to quickly program images onto your SLATE using the NFC interface in your iOS device. Choose from one of the pre-loaded SLATE templates or create and name your own custom clapperboard image through the crop, scale, and processing features in the app. Custom image processing features include: • Crop, Scale, and Rotate • Black/White Threshold Level control to optimize contrast and quality • Unique Dithering control to process images with a grayscale simulation

Screenshots

f8 Lens Toolkit4 screens
BLACKSLATE74 screens

Verdict

The call

The clearest difference is review sentiment: f8 Lens Toolkit at 80% against BLACKSLATE7's 20%. f8 Lens Toolkit also leads on rating (4.9 vs 2.7) and ratings volume (26 vs 6). BLACKSLATE7's advantage is price (Free vs $9.99) and iOS requirement (14.0 vs 16.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

BLACKSLATE7 is free to download; f8 Lens Toolkit costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

f8 Lens Toolkit holds the better App Store score, 4.9 against 2.7. Both are backed by a comparable volume of ratings — 26 and 6 respectively. Written reviews point the same way: 80% of f8 Lens Toolkit's written reviews are positive against 20% of BLACKSLATE7's.

UpkeepUpdate frequency

f8 Lens Toolkit ships an update every 2 months, BLACKSLATE7 every 3 months. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.

Scorecard6 real differences · 4 level
f8 Lens Toolkit versus BLACKSLATE7: the parameters behind the verdict, then further details
Parameterf8 Lens ToolkitBLACKSLATE7
Price$9.99Free — better
Rating4.9 (26 ratings) — better2.7 (6 ratings)
Positive reviews79.5% of reviews — better20.0% of reviews
Number of ratings26 — better6
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.014.0 — better
Further details — not scored
Size4 MB19 MB
Age rating4+4+
DeveloperCadrage GmbHLummico Sp. z o.o.

Customer experience

f8 Lens Toolkit

All ratings26 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews44 reviews
Positive79.5%
Neutral2.3%
Negative18.2%

BLACKSLATE7

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews5 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

In-app purchases

None

f8 Lens Toolkit

No in-app purchases

None

BLACKSLATE7

No in-app purchases

Questions

Is f8 Lens Toolkit free?
f8 Lens Toolkit costs $9.99, with no in-app purchases.
Is BLACKSLATE7 free?
BLACKSLATE7 is free to download, with no in-app purchases.
Which has better reviews, f8 Lens Toolkit or BLACKSLATE7?
f8 Lens Toolkit is rated higher. f8 Lens Toolkit averages 4.9 out of 5 from 26 ratings, while BLACKSLATE7 averages 2.7 from 6 ratings.
Do f8 Lens Toolkit or BLACKSLATE7 have ads?
Neither f8 Lens Toolkit nor BLACKSLATE7 shows ads.
Which is updated more often, f8 Lens Toolkit or BLACKSLATE7?
f8 Lens Toolkit ships an update every 2 months, and BLACKSLATE7 every 3 months. Most recently, f8 Lens Toolkit was updated on October 18, 2026 and BLACKSLATE7 on October 10, 2026.

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