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10-03-2010, 11:08 AM   #1
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Can I use this lens?

I picked up a few lenses and a old Pentax ME body a few days ago. One of the lenses, a Sigma High Power 70 - 230 w/ macro had me so excited but I did not notice that it had no auto setting on the F stop ring for automatic. When I put it on my K10d the F stop indicator just blinks away and it will not allow me to shoot at all. I really want to try this lens. Has any one any ideas on what I can do to get this to work? It is a K mount as it does mount to the camera, just no "A" setting on the F stop ring.

Cherri


Last edited by Kibblelady; 10-03-2010 at 11:13 AM.
10-03-2010, 11:16 AM   #2
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Does K10d have “Using aperture ring” setting? Did you set it to “Permitted”?
This could be helpful: Shooting manual lenses on Pentax DSLRs « robertsdonovan.com
10-03-2010, 11:29 AM   #3
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It should work, as long as you enable the setting mentioned above. For details, check out the article that I've written regarding manual lens usage on Pentax DSLRs:

https://www.pentaxforums.com/forums/pentax-lens-articles/110657-how-use-manua...7-k-x-etc.html

Moved to the lens forum.

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10-03-2010, 01:59 PM   #4
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1. Change USING APERTURE RING in the custom menu to Permitted (pg 210)
2. Set your Preview for Optical (pg 169)
3. Put your lens on the camera and select a focal length (I usually go for the center of the zoom range, works for me).
4. Turn your mode dial to M
5. Pick a shutter speed that works for you or set the aperture you want to use with the aperture ring.
6. If you chose to set a shutter speed, Pull the preview to the right (Pg 170). As you turn the aperture ring you'll see two things. First, your image will get brighter or darker as you open or close the aperture. Second, you'll see the meter in the viewfinder. As you turn the aperture ring, aim to set the meter somewhere towards the center.
7. Take your picture. Adjust as needed, If needed, and retake the picture.
8. If you chose to set the aperture first, pull the lever and dial your shutter speed until the meter centers. Take your photo, check, adjust, retake if needed.

The above is an alternative to using the green button and IMO, a lot more fool proof. Use it if you like, or not...

Enjoy your new lens.



10-13-2010, 08:50 PM   #5
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Thank you sooo much guys! Fast and friendly, I like this board
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