11/27/2023 0 Comments 35mm frame lens![]() Questions asking for equipment purchasing advice or troubleshooting should be posted as comments in the most recent Official Question thread, stickied at the top of the subreddit. Purchasing or Troubleshooting Questions Should Be Directed to the Question Thread Feel free toĬheck out the many other photosharing subredditsĢ. If you just want to share an image you've taken, you're welcome to post in /r/photographs, our sister photo sharing sub. Topic/question rather than the focus of the post. The image should be used to support an overall broad and nonspecific Posting images is only allowed as self-post using the photo as an example for the discussion, to either begin a conversation aboutĪspects of the example or to ask a photography-related question. Official FAQ and Wiki Please be sure to read the FAQ before posting. Photography as an art and post things that would be of interest to other photographers. This is not a good place to simply share cool photos/videos or promote your own work and projects, but rather a place to discuss Let it reside the Hall of Useless Technology, next to ice picks, buggy whips and 8-track tapes./r/photography is a place to politely discuss the tools, technique and culture of photography. I say it's time to deposit 'the conversion factor' to the dustbin of history. ![]() Not to mention the internet, and it's ability to spread incorrect information that will be accepted as gospel.Īnd next, the assumption (and even firm belief with some) that the 'conversion factor' applies to other properties of the lens, such as aperture and minimum focus. So today, the 'conversion factor' has royally muddied the waters. At least back then.īut today, we have an entire generation that has never even SEEN a 35mm film camera, let alone understand focal length, sensor/film plane size and how the two relate to FOV. "Conversion factor' seemed like the perfect choice. So the manufacturers needed an easy way for those transitioning to digital to 'relearn' how focal length related to FOV. But the sensors were smaller than a 35mm frame. So that was 'the gold standard' back then. Many purchased 28mm wide-angles and 135mm telephotos. Everyone and their uncle owned a 35mm film camera. The populace that had grown up with one format: 35mm. It was a marketing tool to help sell fledgling digital SLRs to an uneducated populace. I understand why the manufacturers created the 'conversion' factor. Nor convert the 150mm on my 4x5 to 'the equivelant of _mm on my RB67 camera". I never had to 'convert' the 80mm lens of my Mamiya 645 to 'the equivelant of _mm on my 35mm camera". I never heard of a number to multiply (or divide by) when changing from 35mm to 6x4.5 format, or to 6x7 format, or to 4x5 format. What I find amazing is back in my film days, there was no such thing as a 'conversion factor' to compare lenses between 135, 120 and 4x5 formats. ![]() I hope this makes sense and someone can just say, "Yup, that's what that means." hahaĪnd this is why I wish the 'crop factor conversion' idea would disappear from the face of the earth. I guess I get confused because I would just assume that on a DX lens the manufacture would put "Oh you want a 50mm on your crop sensor well actually put 50mm on that type of lens VS just putting the 35mm equivalent." Example, if I want a 105mm lens that's DX there is still a 1.5 crop factor which really gives me the focal length of a 155mm. My guess is that since the sensor on a full frame camera is bigger the opening on the lens itself (the part that connects to the front of the camera) is larger to accommodate for the full frame sensor, but the DX one, since its a crop sensor has the opening that works best for a crop sensor camera. Here is my guess and please excuse the non technical terms as I don't think i know them. I know that this gives me about 50mm since I have the 1.5 crop factor BUT on the lens itself (this is the DX version) it states 35mm. The DX lenses will have the mm as to how it relates to 35mm film, got it! But here is where I get confused and what I think they (The manufacture means) When looking at lenses (Nikkor to be specific) I know that there are FX and DX lenses. OK so, I think I know the answer to this question but I just need someone to clarify.
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