# NDFilter Calculator&Sheet (Long Time Exposure Photography) — user reviews

> 7 indexed App Store user reviews of NDFilter Calculator&Sheet (Long Time Exposure Photography) by Masami Koya, rated 4.00/5 from 1 ratings.

- Source: https://appshunter.io/ios/app/ndfilter-calculator-and-sheet-long-time-exposure-photography/id560877288/reviews
- App overview in markdown: https://appshunter.io/ios/app/ndfilter-calculator-and-sheet-long-time-exposure-photography/id560877288.md
- Rating breakdown: 5★ 0 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (7 lowest-rated)

### 1/5 — John

*2016-03-03, version 1.1*

Rip off don't buy!!!

### 1/5 — ND Calculator Does not work

*2016-02-29, version 1.1*

The ND Calc does not let you select the stop size. Wheel turns but bug stops you from selecting.

### 1/5 — Don't Get It

*2015-08-22, version 1.1*

I'm not sure why others say this is easy. It's actually to simple and does not have any explanation. The little it has is not well written. I think I wasted my money.

### 3/5 — Not Sure

*2013-03-12, version 1.1*

I haven't used this in the field yet, just down loaded it. I would have given a better rating if the ND Filter title bar was stationary so when scrolling down the filter size was always in sight.

### 4/5 — So simple

*2013-07-06, version 1.1*

I tried a few calculators for nd filters and they were a little confusing. 

This is so simple. Take a reading with a light meter, then find out what the exposure should be with your nd filter. Done!

### 5/5 — Simple and Easy

*2013-02-15, version 1.1*

A well designed straight forward chart.

### 5/5 — Awesome!!

*2012-11-21, version 1.1*

Awesome app. Easily explained in charts, I use 3 ND filters & CPL and I like shooting long exposure during daylight such as moving skies, etc so I need to use Bulb mode. Calculating how long to keep the shutter open can be a PITA so that's why this app is helpful. No need for any calculation, just have your camera meter the scene and all you need to do is compensate the time you need using this chart to keep the shutter open depending on how much stops of ND filters you stacked.

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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 2026-06-10.*