Comparison

f8 Lens Toolkit vs Stop Calculator

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

Stop Calculator

This tool helps filmmakers quickly compare exposure settings between two cameras. It calculates precise stop differences in real-time, ensuring your shots are perfectly exposed and matched across different setups. Simplify your workflow and eliminate guesswork.

Highlights
  • Compare ISO, t-stop, shutter angle, and FPS
  • Real-time stop difference calculation
  • Intuitive interface for filmmakers
  • Exposure feedback for underexposed/overexposed shots
Features
Read full description

Easily compare exposure settings between two cameras and get instant feedback on exposure differences. Whether you’re working with multiple cameras or trying to match your settings across different setups, Stop Calc simplifies the process by calculating precise stop differences in exposure. No more guessing—quickly find out if your settings are underexposed or overexposed and make informed decisions to get perfect shots every time. Key features: - Compare ISO, t-stop, shutter angle, and FPS between two cameras - Get accurate stop differences in real-time - Simple, intuitive interface designed for filmmakers Perfect for cinematographers, videographers, and anyone who needs precise exposure matching across different cameras.

Screenshots

f8 Lens Toolkit4 screens
Stop Calculator1 screens

Verdict

The call

The clearest difference is price: Stop Calculator at $0.99 against f8 Lens Toolkit's $9.99. Stop Calculator also leads on update cadence (every 2 days vs every 2 months) and review sentiment (100% vs 80%). f8 Lens Toolkit's advantage is ratings volume (26 vs 4). On rating, ads, in-app purchases and monetization model 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

f8 Lens Toolkit costs $9.99 and Stop Calculator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for f8 Lens Toolkit against 5.0 for Stop Calculator. That said, the two scores are not equally well evidenced: f8 Lens Toolkit has 26 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 80% of f8 Lens Toolkit's written reviews are positive against 100% of Stop Calculator's.

UpkeepUpdate frequency

f8 Lens Toolkit ships an update every 2 months, Stop Calculator every 2 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
f8 Lens Toolkit versus Stop Calculator: the parameters behind the verdict, then further details
Parameterf8 Lens ToolkitStop Calculator
Price$9.99$0.99 — better
Rating4.9 (26 ratings)5.0 (4 ratings) — better
Positive reviews79.5% of reviews100.0% of reviews — better
Number of ratings26 — better4
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size4 MB1 MB
Age rating4+4+
DeveloperCadrage GmbHeric Hernandez

Customer experience

f8 Lens Toolkit

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

Stop Calculator

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

f8 Lens Toolkit

No in-app purchases

None

Stop Calculator

No in-app purchases

Questions

Is f8 Lens Toolkit free?
f8 Lens Toolkit costs $9.99, with no in-app purchases.
Is Stop Calculator free?
Stop Calculator costs $0.99, with no in-app purchases.
Which has better reviews, f8 Lens Toolkit or Stop Calculator?
Stop Calculator is rated higher. f8 Lens Toolkit averages 4.9 out of 5 from 26 ratings, while Stop Calculator averages 5.0 from 4 ratings.
Do f8 Lens Toolkit or Stop Calculator have ads?
Neither f8 Lens Toolkit nor Stop Calculator shows ads.
Which is updated more often, f8 Lens Toolkit or Stop Calculator?
f8 Lens Toolkit ships an update every 2 months, and Stop Calculator every 2 days. Most recently, f8 Lens Toolkit was updated on October 26, 2026 and Stop Calculator on October 24, 2026.

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