Question about Sigma Cameras
Try your EOS in AV (aprature value) mode. You should be able to adjust your aperature value in 1/3 or 1/2 steps dependind how you have your Custom Functions set in your camera's menu. Possibly the lens you purchased is for an EOS 35mm. If you use a 35mm lens on your eos there are some calculations you must use. When using a 35mm lens on the EOS 20D, 30D, 40D and 50D bodies, you must first calculate your focal leingth by 1.6 times. With this, your exposure changes as well.
The only EOS Digital SLR bodies that use a 35mm x 24mm CMOS sensor are the 1D and 5D. My wife uses a Tamron 18-200mm f3.5-5.6 lens on her 20D and loves it.
If this makes no difference, you may have a defective lens.
Posted on Dec 01, 2008
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Mar 30, 2012 | HP Computers & Internet
Jan 04, 2008 | Sony DCR-VX2000 Mini DV Digital Camcorder
Nov 15, 2017 | 2001 Honda Accord
Apr 20, 2009 | Cameras
Dec 08, 2008 | Logitech Inc G7 Cordless Laser Gaming...
Apr 08, 2007 | Pentax Optio T10 Digital Camera
Jan 29, 2007 | Sony Cyber-shot DSC-W50 Digital Camera
Oct 07, 2017 | Sigma Cameras
116 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: