All Forum Comments
Comment by McGregNi posted on Pentax K7 Noise Reduction at 08/09/2014 - 09:06
The girl on the right, the contrast between her top half and background is quite severe, maybe just an artifact on the web, but it does give her a pasted and cut look - maybe you could check that out.
Comment by McGregNi posted on SLRlounge article, bts family shot with k5 at 08/09/2014 - 09:03
2nd one doesn't appeal too much, I don't like the effect around the sun, but I appreciate it doesn't matter much what camera you use, a direct sun shot will always have this problem.
The third, I agree with David on the lower crop, you could experiment with a few different shapes - I've been enjoying trying out square crops lately
Comment by McGregNi posted on 3 Images from Cornwall with the 645z at 07/09/2014 - 10:13
It was interesting what Matt said about the green button restoring auto-iso defaults. I tried it out in Tav mode, with a range of 200-1600, and thought it was of limited use as you keep' hitting the buffers' on the aperture parameter mostly. I guess it would be more practical on a later model where you could safely set a much wider range?
I also wonder if the memory menu item for ISO has a part to play? I use this on to retain my last set ISO when switching the cameras on again, which works for me. If it was of would the auto-ISO setting have ah influence over what starting iso is chosen? I can only assume that the overall lighting levels would also influence this?
Comment by McGregNi posted on ISO help... at 06/09/2014 - 11:40
Comment by McGregNi posted on ISO help... at 04/09/2014 - 20:29
Mostly were want hands-on firm control over ISO as we're making quality balancing - type judgements about the weighting of ISO and, say, shutter speed, depending on the intended output, our the lighting conditions.
Comment by McGregNi posted on ISO help... at 04/09/2014 - 19:18
My suspicion though is that it probably only applies to shooting in the ' green square' mode, where you have no control over the exposure settings at all, so for most of us probably has no effect ... ?
Comment by McGregNi posted on ISO help... at 04/09/2014 - 09:58
Comment by McGregNi posted on ISO help... at 03/09/2014 - 21:04
Number 3 for me too - lovely light!
Nice set
Thanks , yes I was blessed on a number of beautiful mornings with great light which gave different potential as it rose from dawn through to about 8am, when I would pack it in and head back to reality for breakfast time
Thanks also Russ and Gajan, the other long zoom shot of Swanage was popular also, looking as it did further into the Bay. I was pleased with the performance of the old 75-150 plus teleconverter combo for these shots ... Do I need a DA 300? Maybe I'll get away without it?
Fair point about the foreground plant there Russ, I couldn't get much else in close there without moving down to steep ground. Thanks again all for the replies
Comment by McGregNi posted on Peveril Point Seascapes at 03/09/2014 - 19:21
Lovely portrait, nice soft lighting.I also find the odd eye reflections a distraction. I wonder, would this have been better shot with a subtle mix of natural and flash lighting .... Perhaps a slow-sync setting enough shutter time to record some ambient light, plus a small burst of flash bounced upwards with the catchlight panel raised to record a single spot in each eye and give that needed ' lift'. ...?
Comment by McGregNi posted on 5 In A Row - David Storm at 03/09/2014 - 19:06


There is another setting for NR, that controls the ISO range that the NR operates in - if you're shooting at ISO 100 it may not be operating anyway. I think this function is actually the 'Dark Frame Subtraction' feature, not really noise reduction as we think of it on a computer - is that right ? I think its 'Long Exposure Noise Reduction' which is really Dark Frame Subtraction. It only kicks in if the range is set and you're within the ISO range set, and the exposure is long.