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06/25/2004 08:47:24 PM · #1 |
Been testing these two lenses for macro and I'm not having much luck with the photos so far.
I find it really really difficult to focus even if I set the lens to manual focusing. Not once did it focus when set to AF. Tried it indoors with a halogen desk lamp very close to the subject and it couldn't focus either. The coin and rose thorn were taken indoors with lots of natural light. The leaf photo was taken outside.
The subject needs to be very close to the lens to focus. Is this why the field of view is only 10mm wide? I like how it magnifies the subject though.
Any tips on how to best use this set up? I'm using a macro coupling ring of 55mm and 49mm which by the way cost more than the Olympus lens $1.36 on eBay.
Has anyone tried coupling this Sigma with the Canon 50mm prime? I don't have a coupling ring that fits Canon thread so haven't tried it.
  
No post processing except resize and save for web.
Edit: Additional info: coin: Tv 2.5, F22, ISO 100; rose thorn: Tv 1, F11, ISO 100; leaf Tv0.3, F14 ISO 100. Camera set on manual.
Message edited by author 2004-06-25 20:52:26.
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06/25/2004 09:10:54 PM · #2 |
You're saying you're not having much luck but the shots you're showing look really good.
I use the exact same set up (Sigma 105mm and Olympus 50mm 1.8):
  
You need a lot of light if you're going to shoot at small apertures (high F number) to increase the DOF. I used a Canon 550EX for the above photos. I used two flashes in the following pic (420EX + 550EX fired off by a ST-E2 Wireless transmitter):
You can also get lots of light by shooting in sunlight. You indeed have to get real close to the subject with this set-up (2-3 inches).
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06/25/2004 10:40:45 PM · #3 |
Thanks Jacques.
I really like your macro shots. They inspired me among several others who posted their super macro photos with the reversed lens.
I was thinking maybe I need to use flash. I have the 550EX too so I'll try that....that will probably explain why my lens was almost just an inch or less away from my subject (not 2-3 inches). I wanted to get a little farther but focusing was impossible. Could you set the lens to AF when using the flash?
I know there are several threads on this but can people post their macro shots using whatever lens attached to a reversed one, with info on camera setting and maybe lighting condition too?
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06/25/2004 11:08:38 PM · #4 |
I don't think AF is really usable with a reversed lens. It could work but what I do is set it on manual focus, then rock the camera back and forth. When the image is in focus I take the pic.
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06/26/2004 01:01:38 AM · #5 |
AF is pretty useless with this type of setup. I have the Sigma 105 and a Minolta 50mm. You can use the Canon 50mm, just keep in mind that any damage to the rear element of a lens has a greater effect on your image than on the front element. So, be careful if you try the Canon.
Jacko's the macro king tho, I just had to second his thoughts on the AF.
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