| Author | Thread |
|
|
10/12/2005 02:24:56 AM · #1 |
| If I have a 1:2 300mm macro lens and add a x2 teleconvertor do I end up with a 1:1 600mm or just a 1:2 600mm? Wouldn't it be a 1:1 just being able to focus at the same spot only with twice the focal length? I hope someone understands this cause I just read it and I got a little confused. |
|
|
|
10/12/2005 03:08:04 AM · #2 |
1:2 600mm. The lens in the converter is making this happen. Look at it this way; if the manufacturer wanted to turn your 300mm into a 600mm they would add another, magnifying lens inside the barrel right? (I realize this is a gross oversimplification) The teleconverter just makes that extra element removeable.
To get this lens to shoot 1:1 you need an extension tube, which will cost you your ability to focus to infinity.
R.
|
|
|
|
10/12/2005 03:18:38 AM · #3 |
| Ok, got that. Now if I can focus on say minimum 12 inches at 300mm and I add a x2 will the minimum focus become 24 inches ,or some other number? |
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 09/20/2025 01:15:48 AM EDT.
