All Forum Comments
Comment by davex posted on Cheshire steam fair at 09/07/2011 - 15:15
I'm also interested/keen to be shown the dust spots & their effects on these images.
Comment by davex posted on Grass Seed-heads at 08/07/2011 - 05:10
Favourite; tie between Sigma 150-500mm and 12-24
Least used DFA 100mm
Davex
Comment by davex posted on Lenses we use, lenses we don't... at 05/07/2011 - 17:45
Great starter zoom.
Davex.
Comment by davex posted on got the camera, now the lens at 04/07/2011 - 17:05
I am under the impression that digital cameras do not have shutters,
Comment by davex posted on Black line on photos at 04/07/2011 - 14:43
Comment by davex posted on Am I missing something at 01/07/2011 - 16:40
Maybe others don't need to clean their sensor that often and I will be wondering how
Making sure the camera is switched off when changing lenses and that the camera throat is pointing downwards will help
Davex.
Comment by davex posted on How do you clean your sensor? at 01/07/2011 - 13:11
Pentax 1.7 converter
The Pentax 1.7 converter will AF with any lens, whatever the age or original focus mode provided it can fit the mount.
The Pentax 1.7 converter has a moving element, which fine tunes the focus already set by the main lens.
In order to work the main lens must be at least somewhere near focus.
There are no AF linkages or SDM contacts on the Pentax 1.7 converter.
On a 28mm lens the " roughly in focus" latitude for error is quite large, so a 28mm M series lens and the F1.7 makes a great 48 mm AF lens.
On a DFA 100 Macro focus is much more precise, mounting a Pentax 1.7 converter will give a 170mm AF Macro, but you must still nearly focus the lens first.
Hope this helps.
Davex.
Comment by davex posted on Looking for Teleconverter for D*300mm lens. at 30/06/2011 - 23:36
Time at the bar?
Comment by davex posted on Cheshire Steam Fair at 30/06/2011 - 23:22
I paid 530 US dollars for mine Ouch!!!
Davex.
Comment by davex posted on WTB Pentax 1.7 converter at 30/06/2011 - 11:56
If only to see Puma demonstrating his new tripod and fag packet head;