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Forum: Pentax DSLR Discussion
04-06-2007, 10:46 PM
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I am not a computer guy so I tried to answer this post by topic. Just to let you know...no hostility in my words...just explanations. I'm not big on confrontation so please don't take my comments as such.
Thanks for the comments. Cheers.
Stephen
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Forum: Pentax DSLR Discussion
04-06-2007, 01:40 PM
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[QUOTE=Ray Pulley;44194
So, just because the image is low key does not mean that you have to cram all of image into the bottom 2 - 4 stops of the sensor range. Given this, I fail to see where "low key" shots with the K10D will necessarily have to result in VPN, or that "low key" shots are necessarily limited by the K10D and VPN.
Ray[/QUOTE]
Ray,
If I am reading your statement correctly that is precisely the problem. Low key, to me and most others, does not involve the elimination of midtones or even some highlights. IT does mean, however, that the predominant mood and tones will fall into the sub midtone and visible shadows for delivery of mood and visual impact.
If the minimal midtones and remaining highlights are intact, VPN/HPN should not be present in the shadow. These very real problems are unfortunately encountered by a fair number of forum members.
Contrary to the thoughts of some forum experts, the vast majority of the worlds camera owners do not live in sparkling lands of endless sunshine. Occasionally, we have clients who want moody shots that reflect the ambience of evening, shade or the play between sun and shade. I recently saw a beautiful evening image wherein a major Railway company wanted a beautiful valley shot of their train yards. The light grey colored grain cars, showed clear VPN @ 100 in the normal evening light found in the valley.
Now, granted, maybe these are isolated camera sensors that diverge from the norm, but even on a digital this type of imaging should easily be handled without VPN or HPN.
Stephen
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Forum: Pentax DSLR Discussion
04-03-2007, 08:31 PM
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Rolly,
Thank you very much for such kind and welcomed words. :D
Appreciated.
Stephen
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Forum: Pentax DSLR Discussion
04-03-2007, 01:31 PM
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I can understand your frustration and perhaps a little anger (?) on this issue.
And while I respect your 50,000 images let me explain that until you have experienced one form or another of these problems one wouldn't give a rats patutney about the problems....and...perhaps even deny their very existence.
Let me put this issue in perspective here. I know pushing too. I have been doing it for more than 30 years in more exotic films and technical and specialty films than most people even knew existed. I have been a consultant to image capture with Kodak and industrial and medical imaging Corporations . I average well over 1,000 images per day (roughly 10,000,000 in my career) in my specialty and have lectured and consulted on image capture and output for 28 of those 30 years. While I personally had not made the switch to digital until last year, I have watched and engaged digital (as far back as 1994) in my professional imaging work. While I do not personally experience VPN on my K10D I have sure witnessed it in properly exposed images at medium ISO's in other peoples work.
Is it a Pentax problem????...perhaps...perhaps not (to a degree of course) because it may simply be an isolated problem...and no product is perfect. But, ultimately, Pentax has responsibility to investigate these "normal" exposure problems and make right by it. And to their credit...they have and they will continue to do so.
I have experienced HPN (for lack of a better name) and I do know of what I am talking about, what I am seeing, and what I am experiencing. So, the problem is REAL for some people. Furthermore, Pentax knows it is real too. The problem appears idiopathic (of unknown origin) and isolated to be sure but it does exist. Pentax has not been lazy about addressing or investigating it or denying very isolated examples of these phenomenon to those who care to talk with people within the hierarchy of the company.
So, there are problems, they are real though they may be very isolated.
Where you are most correct, however, is that those utilizing the camera (any camera from any camera maker) need to learn the basic mechanics and physics of light and imaging media (sensor in this case and film in standard SLR's) and how to properly expose.
Unfortunately, probably less than 2% of the picture taking public really knows much about, or has been formally educated in photography. To their credit they come to these very forums to learn and put themselves on the line to be judged by their picture taking peers...newbies, wannabe's, semi-pros and pros. I personally feel that those with solid backgrounds and education and those that have learned, by doing, have a responsibility to share their talents and ideas to help others grow and blossom as photographers. Knowledge, or alleged knowledgein some cases, should not be used as an arrogant or antagonistic platform to debase forum members problems or abilities out of hand.
No camera can handle 6 f stops under exposure but a camera should be able to handle the needs of low key imaging. And for the vast majority the K10D will do that well enough. There is no digital camera on the market....none...that can handle gross exposure errors exceeding a latitude of 2.5 stops in any direction off normal and.... even that is being generous. That's why there is such an output parameter like HDR :)
So, please don't throw the baby out with the bath water. Some people seeking answers here have a legitimate basis for consternation and their frustrations with their purchase.
I look at it this way too: If there were no complaints (real or imagined) what would be the impetus for the evolution and enhancement of a product or for special attention to quality control. None.
So, while you may not have problems (and that's a good thing) others may very well have them. Remember too, that for many the $1K investment in a K10D kit can represent a large part of a persons discretionary spending. Cut them some slack and please try not to lump them as...whatever...simply because they are stirring the cauldron. If it were not for the masses buying this camera those that have training would more than likely not have the K10D in their hands right now.
Just another opinion here.
Stephen
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