![]() It's true that ISO isn't really all that critical (since ISO is basically electronic gain), but it's important to remember that ISO doesn't change the amount of light your sensor receives, only the exposure time and aperture change the amount of light that reaches the sensor when an image is taken. Capturing as much light as possible will help mitigate photon shot noise in your image. Remember, the goal in astro (and really all photography, i'd say) is to capture as much light as possible given your constraints. Regular astro prefers low ISO also, though its a bit more subtle than that. r/RoomDetective - What can you deduce from a photograph? r/Redditor_Pics - Redditors posting pics of themselves, family, and friends r/QualityPhotos - Professionals, intermediates, and beginners are encourage share their best work. r/PictureChallenge - Weekly topic/category of pictures r/PhonePics - Pictures taken from cell phones r/PhotoCritique - Post a picture and receive constructive criticism/advice for improvement r/GuessMyFirstName - Redditors share self portraits, you guess their name! r/ITookaPicture - Give and receive feedback r/Instagramshots - for sharing your instagrams! r/365PhotoProject - Year long marathon of taking and sharing photos r/PicRequests - Requests and assistance for photo editing r/PostProcessing - Noise reduction, sharpening, exposure blending, image retouching etc. r/Gimp (Free Download Here) - A free image manipulation program ![]() r/AmateurPhotography - A place for amateur photographers to share tips, images, tricks, advice and give advice r/Shutterbug - Lighthearted/fun subreddit for discussing photography culture and practice r/Photography - The main hub of all things photography related r/PhotoClass2023 - Join them as they revisit /r/photoclass and more r/PhotoClass - Intro to Photography Reddit style, w/29 lessons r/Cameras - Reviews, articles, blogs, videos, of cameras and gear r/AskPhotography - Ask anything here! Friendly/Supportive & Beginners Welcome! r/PhotoEssay - photography essays and slideshows r/PhotoJournalism - Stories by and about photojournalists, the photography industry, and discussions of photojournalist practices r/FashionPhotography - Photographers, styles, techniques Diana, Holga, Superheadz, Harinezumi, Keychain cams, plastic lenses r/To圜ameras - Lomography, experimental, light leaks. Inappropriate use of reporting functionality may result in reports being referred to Admin. The report button is not a tool you should use to try and influence the mod team. ![]() The report button is for spam and other content that breaks the rules of Reddit as set out by Reddit admin. Only report posts that are in violation of Reddit content policy. Only posts with negative karma scores and no community engagement will be considered for removal by moderators. If the post is not a question or may be appropriate for another sub downvote and ignore it.ĭo not comment, do not report it to the moderation team. Please refrain from personal attacks, insults, slurs, or baiting users.Your opinions and lighthearted banter are fine, but don't let it get personal or excessive.įollow Reddiquette when voting and posting. Well formulated posts with clear accurate titles will help, the better the post the better the response.īeginner or Pro all interest levels in photography are welcome to contribute. The reason 50mm offer such good price/performance ratio when it comes to aperture is that for 35mm cameras that 50mm sits at the sweet spot where the focal length is long enough to allow a simpler non retrofocal design, but not too long that large pieces of glass have to be used to give a good f/number.A place to converse with the photographic community here on Reddit. You can see this if you look at the design of the Canon 24mm f/2.8 and 50mm f/1.8: The wider the lens the more corrections have to be performed due to the retrofocal design, and these corrections are more difficult for wide apertures lenses. Lenses with focal length less that the registration distance (about 46mm for most DSLRs) have to incorporate what's known as a retrofocal design, which is essentially a reverse telephoto group (or "wide converter") at the back of the lens. If you look at the widest of Canon's superteles you see a pattern that 150mm seems to be about the limit of what is economical: Technically it's the image of the aperture stop that must be that size, which means the front element has to be at least that big. It's worth restating that the designation f/1.4 means that the size of the aperture stop is the focal length divided by 1.4, which for a 400 f/1.4 is a whopping 285mm. keeping dispersion low while producing elements of the size required for such apertures. The reason that you don't see any 400mm f/1.4 lenses is due to manufacturing difficulties, e.g. Broadly speaking wide aperture lenses are easier to design the longer the focal length.
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