Re: K-5 and Sigma 300 f4 APO, again
On Tue, May 22, 2012 at 11:12 PM, Miserere miser...@gmail.com wrote: Not sure what going on, the lens worked very well with the istD and k-10d. Any thoughts?? Dave If it's not the SR going crazy Like P.J. suggested, then I'd say you have a loose lens element in the lens. That picture reminds me of a lens I partially took apart to clean the diaphragm blades, and then couldn't remember the correct sequence for the rear 3 elements. I tried various combinations, and the least crap one (though incorrect) produced photos like that. It only happens with this lens, so i'm thinking SR might be ok. I ll see if i can spot anything loose, maybe a trip to Gentec for them to have a look. Dave Cheers, —M. \/\/o/\/\ -- http://WorldOfMiserere.com http://EnticingTheLight.com A Quest for Photographic Enlightenment -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Documenting Life in Rural Ontario. www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ York Region, Ontario, Canada -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-5 and Sigma 300 f4 APO, again
Almost like two different lenses, in focus and bokeh. Jeffery Sent from my iPad On May 22, 2012, at 19:31, David J Brooks pentko...@gmail.com wrote: So, after i set the Sigma 300 f4 APO's focus point a few weekends ago, i set out Saturday to shoot a few back yard birds and such. I did not have to review the photos in LR to tell which ones would be in relative good focus and which ones could not focus. Its a hit a miss but i'm now getting the odd shot like this: http://www.flickr.com/photos/djbrooks/7252554432/in/photostream Pretty much in focus, and then at times i get this: http://www.flickr.com/photos/djbrooks/7252554372/in/photostream Nothing will be in focus no matter how hard i try or use AF or MF. Not sure what going on, the lens worked very well with the istD and k-10d. Any thoughts?? Dave -- Documenting Life in Rural Ontario. www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ York Region, Ontario, Canada -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-5 and Sigma 300 f4 APO, again
Looks like randomized subject movement to me. I seem to get similar images when I forget to input the proper focal length for the anti shake system with a manual focus lens. Usually when I go from 200mm to 24mm. On 5/22/2012 8:31 PM, David J Brooks wrote: So, after i set the Sigma 300 f4 APO's focus point a few weekends ago, i set out Saturday to shoot a few back yard birds and such. I did not have to review the photos in LR to tell which ones would be in relative good focus and which ones could not focus. Its a hit a miss but i'm now getting the odd shot like this: http://www.flickr.com/photos/djbrooks/7252554432/in/photostream Pretty much in focus, and then at times i get this: http://www.flickr.com/photos/djbrooks/7252554372/in/photostream Nothing will be in focus no matter how hard i try or use AF or MF. Not sure what going on, the lens worked very well with the istD and k-10d. Any thoughts?? Dave -- Don't lose heart! They might want to cut it out, and they'll want to avoid a lengthily search. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-5 and Sigma 300 f4 APO, again
On Tue, May 22, 2012 at 8:37 PM, P. J. Alling webstertwenty...@gmail.com wrote: Looks like randomized subject movement to me. I seem to get similar images when I forget to input the proper focal length for the anti shake system with a manual focus lens. Usually when I go from 200mm to 24mm. Camera seems tho think its a Pentax fa 300 IIRC. Funny thing is i have this happend at 1/200, 1/500 and even at 1/2000 with SR on. Then it stops and the next bunch are fine. it does not seem to BF or FF, just not focus on anything, Daaave On 5/22/2012 8:31 PM, David J Brooks wrote: So, after i set the Sigma 300 f4 APO's focus point a few weekends ago, i set out Saturday to shoot a few back yard birds and such. I did not have to review the photos in LR to tell which ones would be in relative good focus and which ones could not focus. Its a hit a miss but i'm now getting the odd shot like this: http://www.flickr.com/photos/djbrooks/7252554432/in/photostream Pretty much in focus, and then at times i get this: http://www.flickr.com/photos/djbrooks/7252554372/in/photostream Nothing will be in focus no matter how hard i try or use AF or MF. Not sure what going on, the lens worked very well with the istD and k-10d. Any thoughts?? Dave -- Don't lose heart! They might want to cut it out, and they'll want to avoid a lengthily search. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Documenting Life in Rural Ontario. www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ York Region, Ontario, Canada -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K-5 and Sigma 300 f4 APO, again
On 22 May 2012 20:31, David J Brooks pentko...@gmail.com wrote: So, after i set the Sigma 300 f4 APO's focus point a few weekends ago, i set out Saturday to shoot a few back yard birds and such. I did not have to review the photos in LR to tell which ones would be in relative good focus and which ones could not focus. Its a hit a miss but i'm now getting the odd shot like this: http://www.flickr.com/photos/djbrooks/7252554432/in/photostream Pretty much in focus, and then at times i get this: http://www.flickr.com/photos/djbrooks/7252554372/in/photostream Nothing will be in focus no matter how hard i try or use AF or MF. Not sure what going on, the lens worked very well with the istD and k-10d. Any thoughts?? Dave If it's not the SR going crazy Like P.J. suggested, then I'd say you have a loose lens element in the lens. That picture reminds me of a lens I partially took apart to clean the diaphragm blades, and then couldn't remember the correct sequence for the rear 3 elements. I tried various combinations, and the least crap one (though incorrect) produced photos like that. Cheers, —M. \/\/o/\/\ -- http://WorldOfMiserere.com http://EnticingTheLight.com A Quest for Photographic Enlightenment -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
