All Forum Comments
Comment by Algernon posted on No Sigma USB Dock for Pentax??? at 14/09/2013 - 10:15
With current Pentax cameras flash sync being maxed out at 1/80th I was wondering if this is down to the cameras software or the shutter mechanism its self.
My question is, could the flash sync speed be increased to 1/250th via software / firmware update?
Although a Pentax FF model is becoming a bit of a holly grail, if and when Pentax do release a FF model will its flash sync speed increase to 1/250th?
little interest there is in that camera and people seem to
prefer ones with 1/60th second sync speed I don't think
faster sync speed is of any importance as a selling point!
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Comment by Algernon posted on Flash Sync Speed Now & In The Future at 14/09/2013 - 10:13
It not a fault it's the way the shutter is designed to work.
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Comment by Algernon posted on Flash Sync Speed Now & In The Future at 13/09/2013 - 18:31
I've seen distances given in Nikon RAW files which is a
handy thing to know.
Even the Q has a load of contacts for other stuff.
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Comment by Algernon posted on No Sigma USB Dock for Pentax??? at 13/09/2013 - 16:40
on the Pentax K mount. The AF uses the two Pz contacts and
other stuff uses the A Series contacts. Sigma probably need
a minimum of +/- power supply to their chip plus distance
and focal length, which might not be available.
The new K(N)iiZ mount with 12 contacts should sort it out
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Comment by Algernon posted on No Sigma USB Dock for Pentax??? at 13/09/2013 - 15:38
although I like this one as well.... link
Comment by Algernon posted on What photograph would make you happy ???? at 13/09/2013 - 08:11
Comment by Algernon posted on Taylor Wessing Portrait Prize 2013 - In pictures at 13/09/2013 - 07:57
remove the lens from the camera and move it to the Dock
after each adjustment then back again. You might also have
to move your SD Card over to the PC... I use an Eye-Fi Card
so I don't need to do that.
Even when you set some Sigmas, which you can only do wide
open.... they focus shift badly on stopping down. The 120-300mm
does that.
It's not well known..... mostly because it isn't needed, but
some Vivitar lenses have a separate adjustment to set the lens
to infinity inside the lens.... Let's all moan about all
lenses should have that
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Comment by Algernon posted on No Sigma USB Dock for Pentax??? at 13/09/2013 - 07:48
You would have to be a masochist to want to adjust a zoom at four
FL's and four distances at each one
The simple solution is stay clear of Sigma or any other lens that
hasn't been designed properly.
I've never heard of anyone complaining that the focus is out
at another distance once they have set the single adjustment.
I suppose looking on the bright side it's another thing that
Pentax users can moan about
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Comment by Algernon posted on No Sigma USB Dock for Pentax??? at 12/09/2013 - 19:34
Ricoh is definitely a manufacturer of cameras, all those factories haven't disappeared, they just have a new owner.
I feel sorry for the man who puts up the big letters on the
factories that form the word 'P E N T A X' .... No longer will he
be able to crack the joke.... "Just going for a 'P'
Just going for an 'R' isn't funnee!
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Comment by Algernon posted on Where are the Pentax cameras? at 12/09/2013 - 10:19
If you use the excellent ExifTool software on an image taken with a Pentax DSLR, you will see that there is the focal distance (the value seen on the lens is in three positions in the EXIF data, plus the SRFocalDistance which is the value needed by the Shake Reduction to take into account the reduction of FOV of IF lenses at short range).
There is also some distance information (8 possible values) in the LC2 byte (which also contains some information on the minimal focus distance of the lens).
distance bird shots etc.were.
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