• FOViewer Deluxe Free 1
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FOViewer Deluxe Free

FOViewer Deluxe is a handy astronomy tool for every stargazer or astrophotographer. It allows you to calculate things like the magnification of your particular telescope and eyepiece combination. FOViewer Deluxe will also show your field of view superimposed on astrophotos of well-known objects. That way you can get a good prediction of which eyepieces to use to optimally view your celestial targets. You can add your own equipment to FOViewer Deluxe to get spot-on predictions for your telescope / eyepiece combinations. If a particular telescope / eyepiece combination results in a magnification that goes beyond the maximum useful magnification of your telescope, then FOViewer Deluxe will notify you by giving the magnification a red background and showing an alert. There are also a couple of very handy features for astrophotography!
Apart from the magnification, the field of view and the F ratio of your telescope, FOViewer Deluxe will show you the local time, your GPS coordinates, the current moonphase, a clear sky clock for your location, a bubble level and a compass to help you get that GOTO telescope properly aligned!

So to summarize, FOViewer Deluxe;

• Calculates the magnification, F ratio and field of view for a particular telescope / eyepiece combination.• Calculates the exit pupil for a particular telescope / eyepiece combination.• Alerts you when your magnifications goes beyond the maximum useful magnification of your telescope.• Shows you your field of view as a circle drawn on photos of celestial objects. All objects of the Messier and NGC catalogue are available.• Shows the field of view of your (CCD/DSLR) camera as a rectangle drawn on photos of celestial objects. The field of view rectangle can be rotated. All objects of the Messier and NGC catalogue are available.• Let’s you add and remove your own telescopes, eyepieces, CCD camera's and barlow lenses.• Shows your local time to help you configure your GOTO telescope.• Shows your current GPS position.• Shows you where magnetic north is by means of a compass.• Shows you the current moonphase.• Shows you a clear sky clock for your current location.• Much more!

A few pointers on using FOViewer.• Tap the arrow icons in the top bar to cycle through eyepieces and cameras. • Tap the arrow icons in the lower bar to cycle through objects in the current catalogue. • Frequently calibrate your build-in electronic compass by drawing figure 8’s in the air.

__Note__If you export your gear from the trial version (Add gear > Menu > Export), it will be automatically imported in the full version of FOViewer Deluxe.

If you don't see a menu button on your device, long press the multitask button to open the menu.

WE ARE LOOKING FOR ITALIAN TRANSLATORS.Please send us an e-mail of you are willing to translate FOViewer into Italian.

Category : Tools

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Reviews (14)

Edg. R. Feb 1, 2022     

Unusable in Android 11, a lot of Java runtime errors. I knew the app when I had Android 6 and it worked good

Jo. V. Mar 3, 2021     

Very useful to help know what to look for and what eyepiece to use.

Riy. R. Oct 5, 2017     

Good tool in theory and works for non-planets. But for planets it won't go past saying "retrieving data from internet" i.e. it can't tell me to what extent the planet will fit within my FOV.

A. G. u. Dec 21, 2017     

awesome app, I use it often to plan which scope and camera to use for upcoming shots. I do wish the app could have an option without night mode for when you're not in the field.

Mik. M. Oct 5, 2016     

People giving this a low review don't understand that it simply gives you an idea of object size.

Jac. M. Jul 21, 2016     

Would be nice if there were a larger selection of telescopes to select from in the list.

Mar. M. Jun 24, 2013     

I don't know what this app is supposed to do but I'm glad I tried the free version first.

Sco. Q. Oct 17, 2013     

This app gives a nice preview of astronomical objects based on user input of telescope info,eyepiece,Barlow used and object viewed. Plus you can add your own gear...awesome.pick planets,messier objects ...nicely done in night vision red. Good job

A. G. u. Feb 17, 2012     

Good idea. Would be improved by allowing rotation of dslr fov and idealy free movement.

Dav. B. Aug 18, 2013     

A usefull ap for use at the telescope. Those folks who gave low reviews don't understand what its for. You need to include the cauldwell or icc objects also.

Den. R. Jul 21, 2016     

Compass does not work and why not a daytime option also. Red all the time is horrible

A. G. u. Feb 21, 2012     

4 star because I miss the planets and moon from the FOV display. That would be useful for cameras.

Jos. M. Aug 5, 2013     

I could not find Cocoon Nebula! :( Please add and IC database!

Dem. S. Aug 27, 2014     

Goes the weasel & the weasel goes pop