AstroFITS vs FixedFocus

A simple app to open FITS file in iOS quickly using GPU. It has an auto-stretch feature. And works on FITS file with RGB or gray color. It handles BITPIX of 8,16,32,-32 and -64. It is designed and tested for Seetar FITS file. It takes about 2 seconds to open and automatically stretch a 50mb FITS file. Sample links are provided below. Enjoy! Use: 1. Download your FITS file to your phone File directory. 2. Tap Image icon on the first top left. 3. Select your FITS file. 4. It will auto stretch. 5. Adjust the image level. 6. Adjust the image curve. 7. Tap the second top icon to save image to Photo. If you encounter an issue, please email to ustrainsit74@gmail.com with your FITS file as attachment. Sample: Below are some FITS files for download. - https://drive.google.com/file/d/1Li8f1QH1u1R6U8RKZZ0kwW9LZ4cHCaXz/view?usp=share_link - https://drive.google.com/file/d/1MVuW1oa7qAjbfdl_iGUI-q7knE2ij67v/view?usp=share_link - https://drive.google.com/file/d/1TE70gdDK3XmLx9-iB43I-uh6INq8FCaO/view?usp=share_link Privacy policy and term of use (EULA) is at https://deepskycolor.blogspot.com/2018/12/privacy-policy-for-deep-sky-color-app.html

FixedFocus is a minimalist camera for birding, wildlife, and digiscoping. When you shoot through a spotting scope, clip-on telephoto, or dense foliage, iPhone autofocus often hunts — jumping from bird to branch to grass at the worst moment. FixedFocus puts focus back under your control. WHY FIXEDFOCUS • One-tap Focus Lock — freeze focus distance so AF stops hunting • Fine Manual Focus — 0–100% slider to nail the subject • Stay on the lens you chose — switch Ultra Wide / Wide / Tele on purpose • Pinch zoom up to 10× when you need a closer look • Dark, distraction-free UI for the field • No account. No ads. No tracking. Photos stay on your device. BUILT FOR • Digiscoping through spotting scopes & phone adapters • Birding when AF confuses leaves and feathers • Wildlife & backyard feeders through glass or branches • Anyone tired of the system camera switching lenses mid-shot HOW TO USE 1. Point at your subject 2. Tap Lock 3. Drag the focus slider until the bird is sharp 4. Capture Works with any adapter brand — Phone Skope, MagView-style mounts, clip-on telephotos, or just the native tele lens. No proprietary hardware required. PRIVACY We don’t collect personal data. Camera and Photos access are only used to capture and save images locally. TERMS OF USE (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PRIVACY POLICY: https://docs.google.com/document/d/1TEQAf5L31JKI47D9RQCgVx3MSf2VkQCZOAE1FvIRkSA/edit?usp=sharing QUESTIONS OR FIELD FEEDBACK? We read every note from birders and digiscopers. Tell us what you need in the field — peaking, video, Bluetooth shutter, and more are on the roadmap.