# Exposure Buddy - Photo Calc — Exposure, DOF & Temp Calc

> Exposure, DOF & Temp Calc (iPhone/iPad app by Huang Yao-tseng.)

- Source: https://appshunter.io/ios/app/exposure-buddy-photo-calc/id6759903352 (this page in markdown: same URL + `.md`)
- Developer: [Huang Yao-tseng](https://appshunter.io/developer/955366736)
- Category: Utilities, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.6 · 6 MB
- Languages: American English, Chinese (Traditional, Taiwan)
- Released: 2026-03-05
- Data updated: 2026-05-14
- User reviews in markdown: https://appshunter.io/ios/app/exposure-buddy-photo-calc/id6759903352/reviews.md

## What is Exposure Buddy?

The essential precision brain for every photographer.

Whether you're a film enthusiast or a professional digital creator, Exposure Buddy provides the most intuitive and accurate parameter conversions. Stop doing math in your head and start focusing on capturing the perfect moment.

[Three Core Features]

1. Precision Exposure Calculator (EV Calc)

Supports A (Aperture Priority), S (Shutter Priority), and M (Manual) modes.

Step adjustments (1, 1/2, or 1/3 EV) to match your camera system perfectly.

Real-time EV100 ambient brightness calculation with an equivalent exposure reference table.

2. Professional DOF Calculator

Built-in presets for Full Frame, APS-C, Micro 4/3, and more.

Customizable Circle of Confusion (CoC) for ultimate sharpness control.

Unique "DOF Visualization Chart" to see the distribution of focus point, hyperfocal distance, and sharp range at a glance.

3. Color Temperature Tool

Designed for sunset and the Golden Hour, simulating dynamic color shifts ±30 minutes from sunset.

Real-time Kelvin estimation with professional shooting suggestions and filter recommendations based on light conditions.

[Why Choose Exposure Buddy?]

Clean UI: Designed for one-handed operation in the field.

Ad-Free Experience: Upgrade to the Pro version to permanently remove ads for a seamless workflow.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Version (Remove Ads) | $0.99 | one-time |



## Version history (last 3 releases)

### 1.0.2 — 2026-03-17

fixed some bugs.

### 1.0.1 — 2026-03-06

fixed some bugs.

### 1.0.0 — 2026-03-05

No release notes.

## More apps by Huang Yao-tseng

- [樂透選號王](https://appshunter.io/ios/app/id6759696789)
- [FairShare - Easy Bill Splitter](https://appshunter.io/ios/app/fairshare-easy-bill-splitter/id6760538609)
- [Journap: Art Sticker Camera](https://appshunter.io/ios/app/journap-art-sticker-camera/id6766192900)

All apps by Huang Yao-tseng: https://appshunter.io/developer/955366736

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-14.*