Question about Sigma APO 70-200mm f/2.8 EX DG HSM Lens
Sounds as if your diaphragm may be sticking due to either the camera or the lens. Look at the back of the lens and work the small tab with the aperture ring set to f32 (or 22). See if the tab moves smoothly but with resistance from a spring, or if it sticks or moves roughly. If it does this with other lenses too, another possibility is the aperture lever on the camera. Mount the lens and set it for f22 or so and use your depth of field preview to see if the lens is stopping down smoothly. In either case it may need professional repair.
Posted on Nov 03, 2007
Tips for a great answer:
Feb 08, 2013 | Opteka 650-2600mm High Definition...
Nov 19, 2010 | Tamron 28-200mm f/3.8-5.6 LD Aspherical IF...
Mar 23, 2009 | Olympus Zuiko 70-300mm f/4-5.6 Digital ED...
Jul 03, 2008 | Camera Lenses
Jun 08, 2008 | Olympus EZ 14-45mm f/3.5-5.6 for SLR
May 29, 2008 | Quantaray 28-200MM F3.8-5.6 Lens for Canon...
Dec 24, 2007 | Camera Lenses
Jun 06, 2012 | Sigma APO 70-200mm f/2.8 EX DG HSM Lens
Mar 28, 2010 | Sigma APO 70-200mm f/2.8 EX DG HSM Lens
107 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: