Free Shipping on ALL Products
camera reviewsbest cameraslens reviewsphotography tipscamera forumvideo toursphotography bookssupport me
It is currently Sun Apr 20, 2014 10:15 pm

All times are UTC




Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post subject: Extension tubes on 4/3
PostPosted: Sun Nov 25, 2007 8:54 pm 
Offline
User avatar

Joined: Sun Nov 11, 2007 1:22 am
Posts: 404
Location: St. Boswells, Scottish Borders
I have seen cheap extension tubes on ebay and other sites which claim to work with E-system cameras - however they don't have electrical contacts. This doesn't sound possible with lenses with motorized manual focusing such as 4/3 lenses. Am I missing something?

_________________
Olympus E-510 | ED 14-42mm 1:3.5-5.6 | ED 40-150mm 1:4.0-5.6 | 35mm 1:3.5 Macro | Giottos MTL8361B & MH-5001 3-way head | Lowepro Orion Trekker II bag

http://www.calummacnab.com


Top
 Profile  
 
 Post subject:
PostPosted: Mon Nov 26, 2007 2:38 am 
Offline
User avatar

Joined: Thu Jul 26, 2007 11:13 pm
Posts: 384
Location: Florida, USA
Hello calmac1991,

Extension tube are designed to provide space between the rear lens element and the sensor, thus allowing some close-up macro-work, these tubes sometimes disable AF and makes the image look "funny" but it gives you a decent macro reach (My past knowledge on Nikon, maybe not the 4/3 system).

Hope this helps! :D

_________________
Assistant News Photojournalist
Nikon and Canon Systems
A variety of f/2.8 lenses from 10.5 to 400mm
Support Cameralabs!


Top
 Profile  
 
 Post subject:
PostPosted: Mon Nov 26, 2007 6:54 am 
Offline

Joined: Tue Sep 04, 2007 3:11 am
Posts: 298
Location: San Francisco Bay Area
good point calmac1991. I don't know anyone who's tried this, but without electrical assistance the focus is disabled on Zuiko lenses, from what I've read. You could however use OM or other lenses that don't depend on the electrical input and focus manually.

_________________
BrianS
D50, 70-300mm VR, 50mm f/1.8


Top
 Profile  
 
 Post subject:
PostPosted: Fri Dec 07, 2007 3:10 pm 
Offline

Joined: Wed Jun 20, 2007 8:13 am
Posts: 3
Location: Netherlands
BrianS wrote:
good point calmac1991. I don't know anyone who's tried this, but without electrical assistance the focus is disabled on Zuiko lenses, from what I've read. You could however use OM or other lenses that don't depend on the electrical input and focus manually.


That is correct, focus by wire from the digital Zuiko┬┤s requires the EX-25 to make it work.
I actually just bought the OM Zuiko 50mm 3.5 macro (to use on OM Bellows), but first impression is that it is almost as sharp as my digital Zuiko 50mm macro. And with the OM Zuiko you can focus and set the aperture manually and use very simple extension tubes.

_________________
Arend - Nikon D300 on wooden legs with glass from N, S, T, V and even C and an Olympus eyecup.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  

All words, images, videos and layout, copyright 2005-2012 Gordon Laing. May not be used without permission.
/ How we test / Best Cameras / Advertising / Camera reviews / Supporting Camera Labs

Webdesign by Alphabase IT
Powered by phpBB® Forum Software © phpBB Group