Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Sony Alpha dSLR / Konica Minolta dSLR, Sony SLT

Thread Tools Search this Thread
Old Aug 18, 2009, 11:26 AM   #11
Senior Member
TCav's Avatar
Join Date: Sep 2005
Location: Washington, DC, Metro Area, Maryland
Posts: 13,394

While extension tubes don't have any optical ellements of their own, they magnify the flaws in the lens they're used with, and they diminish the light getting to the image sensor. Since your other lenses are pretty dim to start with, your 50/1.8 will probably be the most useful.

Kenko makes two types of extension tubes. One uses molded plastic release buttons just like on your Kenko TC. These are good. Kenko also makes another, cheaper kind that use a formed sheet metal lens release. These aren't so good. I've seen reports of them getting stuck and of light leaks.
  • The lens is the thing.
  • 'Full Frame' is the new 'Medium Format'.
  • "One good test is worth a thousand expert opinions." - Tex Johnston, Boeing 707 test pilot.
TCav is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 5:29 PM.