Timeline for Looking for an excellent telephoto lens that can also shoot bad photos at 30mm if need be
Current License: CC BY-SA 4.0
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| May 14, 2018 at 18:18 | history | edited | Michael C | CC BY-SA 4.0 |
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| May 14, 2018 at 6:28 | history | edited | Michael C | CC BY-SA 4.0 |
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| May 14, 2018 at 4:33 | vote | accept | Jojodmo | ||
| May 13, 2018 at 23:35 | history | edited | aaaaa says reinstate Monica | CC BY-SA 4.0 |
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| May 13, 2018 at 7:04 | comment | added | Michael C | If the entire range of focal lengths is in the telephoto range it's not that bad for a 4X or so zoom. The problem with going from wide angle through normal to telephoto is that the wide angle portion must use a retrofocus design and then the lens has to move different groups in different directions and amounts to switch to a telephoto design. | |
| May 13, 2018 at 6:31 | vote | accept | Jojodmo | ||
| May 14, 2018 at 4:33 | |||||
| May 13, 2018 at 5:50 | comment | added | OnBreak. | @Jojodmo - physics problems is an understatement. For comparison, look at how bulky the 70-200 f/2.8 and 100-400 f/4.5-5.6 are - and those are ~2.5x and 4x zooms. You're asking about a 30-200 or, ~6.6x zoom. The aperture range will suck, because anything worthwhile will be cost prohibitive if not physically impossible, and the image quality as well. Like Michael said, there's a big reason you don't see good zooms over 3x. They're huge and prohibitively expensive to do right (by IQ standards) if it's even physically possible. | |
| May 13, 2018 at 2:49 | comment | added | Jojodmo | Thank you so much for the in-depth answer! I know that no one wouldn’t create one, but out of curiosity, do you know if it would be possible to make such a lens or if it would run into physics problems? | |
| May 13, 2018 at 2:07 | history | edited | Michael C | CC BY-SA 4.0 |
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| May 13, 2018 at 2:01 | history | edited | Michael C | CC BY-SA 4.0 |
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| May 13, 2018 at 1:53 | history | answered | Michael C | CC BY-SA 4.0 |