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Photography F.A.Q (Last Updated: 2025 Feb 03 6:38 am)




Subject: lens 300mm vs 500mm

iamirish opened this issue on Aug 13, 2005 ยท 5 posts
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iamirish ( ) posted Sat, 13 August 2005 at 10:37 PM ยท edited Thu, 06 February 2025 at 4:03 AM

Hello People Just bought a 20d and need a little help if you dont mine.Can anyone tell me how much more distance a 500 mm lens will give me vs a 300mm lens.The 300 mm works great but it seams like cant get the distance.for up close pictures.Wish i had a side buy side pictures of both. Thanks for any type of help. tom

pstekky ( ) posted Sun, 14 August 2005 at 5:11 AM

Remind me, I'll take one with each tomorrow and show ya. I know there is a chart that I don't remember the link for, but I also have a 20D with both a 300 and 500, so this one's easy. :) Just have to wait for some daylight and non blurry vision. (3am here) Rich P.S. You're going to LOVE that camera!!

iamirish ( ) posted Sun, 14 August 2005 at 8:02 AM

Rich thanks for the reply.this will help me a lot.cant what . thanks again tom

TomDart ( ) posted Sun, 14 August 2005 at 9:53 PM

If not mistaken, 50mm is about 1x, as in telescopes and binoculars. That is assuming a 1/1 shot with a 50mm, 200 mm would give you about 4x magnification, etc.(200/50=4). If this is incorrect info, someone please correct me! Anyhoo..I do have a 300mm and it doesn't reach out like my everyday binoculars but then again, I can't get photos through them and the f value would be terrible if I tried!

cynlee ( ) posted Sun, 14 August 2005 at 10:17 PM

Rich has posted a series of images for you a few threads above this one... just click on [read new messages] :]

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