Free Shipping on ALL Products
camera reviewsbest cameraslens reviewsphotography tipscamera forumvideo toursphotography bookssupport me
It is currently Fri Dec 19, 2014 6:26 pm

All times are UTC




Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: 2x convertor
PostPosted: Tue Aug 25, 2009 10:37 pm 
i got a 2x converter with my sal 75/300 lens, when its attached the auto eye focus will lock focus, but when i go to press the shutter button lens srats to zoom in and out uncontrolable. it continues until i remove the converter. can you tell me what i'm doing wrong. this is my frist dslr.


Top
  
 
 Post subject:
PostPosted: Tue Aug 25, 2009 11:39 pm 
Which teleconverter did you get? A Kenko, Minolta, or Sony?

Any 2x TC is going to narrow your aperture by two stops. At 300mm (600mm with TC), your lens will go from F/5.6 to F/11. There is no way it will be able to auto focus with so little light. If you really want to use it (I would suggest against it), use manual focus. To maintain AF, keep the total aperture under F/8.


Top
  
 
 Post subject:
PostPosted: Wed Aug 26, 2009 10:20 pm 
I believe the SAL75300 isn't compatible with Sony TCs.


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 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