ND Filter Expert Pro

Eve&Else

About this app

The easiest and fastest way to calculate the exposure time when using neutral density filters or gray filters.

What does ND Filter Expert Pro?
With ND Filter Expert Pro you can calculate the exposure time super fast and easy if you use ND filters on your SLR camera or if you want to know which ND filter to use for your photo.

You don't know how to use ND filters?
That's no problem. ND Filter Expert Pro helps you get started with ND filters. The app gives you extensive information and simple step-by-step instructions on what a neutral density filter is and how to use it with your camera. In addition to the extensive tutorial, we offer you additional information and also give you recommendations for suitable accessories. Thus ND Expert Pro offers you a complete package from start to finish for the use of ND filters.

calculating or writing it down?
Do you have all exposure times with ND filter in your head or do you always have to write them down? That's over now. Save the calculated exposure time as a favorite and quickly access it again.

Problems with measuring the exposure time ?
Do you also never know when the calculated exposure time is over or do you have to carry a stopwatch? ND Filter Expert Pro has a built-in timer function that allows you to measure times accurately over three seconds. The app notifies you with an alarm and vibration when the timer expires. In the settings you will find different types of tones and vibration schemes to choose from.

Can I combine filters?
Yes, of course, because ND Filter Expert Pro gives you the ability to calculate the exposure time of up to five combined filters. For each filter you can choose from the total number of all filters (ND1 - ND19) and combine them.

All ND Filter Expert Pro features at a glance:
- Calculation of the time extension when using neutral density filters
- Combine up to five different ND filters for the calculation
- Information about neutral density filters, use of ND filters and useful accessories
- Timer functionality for exposure times greater than three seconds
- Favorites list for frequently used ND filter values
- Solutions for frequently asked questions about the use of neutral density filters
- Setting options for the timer
- Different vibration modes for the timer
- Alarm with sound when the timer expires
- No unnecessary authorizations; minimal authorizations
- Easy handling
- Further setting options
- Attractive design
- Support for the application

What can the Pro version do more?
By purchasing the Pro version of ND Filter Expert, you also get the following features:
- Ad-free version of the application. All banners are hidden
- Additional calculation methods to calculate a required ND filter or the light value
- Save combined filter calculations as a favorite
- Infinite number of favorites
- Jump from Favorites to the calculation or the timer
- Filter & search within your favorites
- Table of all used and available ND filters
- Further adjustment possibilities
- You support the further development of this app

If you have any questions about the app or ideas, feel free to contact us. We are available for you at [e-mail].

For more information about ND Filter Expert Pro, please visit www.nd-filter-expert.com

Ratings and reviews

Really good app with a lot of functionalities, especially the expert mode that is suitable for much more custom case (change ISO and aperture from test shot) than usual app. An idea would be to propose ISO / aperture tuning to come to a more close value that can be set on camera like Nikon Z, avoiding using bulb mode.

Nice app, but I was a bit frustrated as I tried to customize it for my filters: 1) The description field for the filter only allows 7 characters, that is unnecessary limiting: the ND100000 has to be described as ND100k 2) More annoying, one filter I have is a Hoya ND400 rated 9 stops and I cannot add it. The default ND400 is rated 8.66 stops. The default filter rated 9 stops is called the ND512. So, when setting the value "9", the app tells me to use the ND512 and I will have a confusing filter name.

So far works great, but how I can calculate the time when I use the BULB setting?

What's new

Version 5.0.5:
- Bug fixing and performance improvement
- Technical dependencies updated
- fix crash in tutorial view
- fix crash in calculation view