PentaxLife Tag: backfocus

Vitali on "21mm Limited Back Focus Issue"

Vitali — Fri, 16 Mar 2007 17:39:21 +0000

Happy end of this story
http://pentaxlife.com/forum/topic/47

benjikan on "21 Limited Replaced and Perfect..."

benjikan — Fri, 16 Mar 2007 10:42:45 +0000

Yesterday, Pentax gave me a replacement of my 21L that I was having BF problems with. The one they gave me was the one given to "Reposes Photo" magazine in France to use for their review..I guess it would be perfect in that case. None the less I can now use my focal length of preference without hesitation or concern. It is Soooo sharp..I love it.

Vitali on "21mm Limited Back Focus Issue"

Vitali — Mon, 05 Mar 2007 15:56:00 +0000

Have you tried to calibrate the focus by yourself using recently leaked service menu activation method?

Hope you will share your 16-50mm impressions with us :)

benjikan on "21mm Limited Back Focus Issue"

benjikan — Mon, 05 Mar 2007 12:47:36 +0000

Just got the response from Pentax via their head office in Germany. They confirmed that there is a back focussing problem with the 21mm Limited exclusively. They offered to set up one of my bodies to work in conjunction with the lens, which I refused. I do not wish to take up one body exclusively for that lens. I am waiting on a firmware fix or a chip set change for the lens. I will use it in manual focus only. They are sending me back the two bodies and the two lenses i.e. the 21 and the 16-45 which didn't have a problem and focussed perfectly on the "0" calibration point. I will wait for the 16-50 f2.8 which I should have in ten days to use in lieu of the 21mm Limited. If it is anything like the Canon 17-40L lens which I used on 80 percent of my magazine work, I will probably do the same with it.

Ben