All Forum Comments
Comment by johnriley posted on k7 settings? at 22/11/2010 - 11:43
There aren't that many new posts per day in there as a rule, but if you don't want to read then just click "mark all as read" at the top of the section and all the green alerts will disappear.
Comment by johnriley posted on Welcome messages - a suggestion at 22/11/2010 - 11:20
Following this thread why would you need to turn off shake reduction ? What difference would it make ?
I also suspect that as the Pentax DSLRs clamp the sensor to a fixed position when SR is turned off this probably means the highest precision at that point, so for critical macro work that would be the way to go.
I use the 2 second self timer for tripod shots, so the camera turns SR off automatically.
Comment by johnriley posted on What's causing this? at 22/11/2010 - 10:09
Comment by johnriley posted on The Optio I-10 at 22/11/2010 - 10:03
What happens with format is that on 6x6cm you get the field of view of a standard lens with 75/80mm. Thus, your standard lens has less DOF than a standard lens for 35mm film cameras or APS-C DSLRs.
It's all connected and logical once you've clicked with the idea that DOF depends on magnification. For a given magnification, all lenses say at f8 have the same DOF.
To understand that, think of taking a photo of a small ornament. A 50mm macro is used to take the image. Now we decide to use a 100mm macro to take the same image, but 100mm lenses have less DOF? Yes, at the same distance, but to fit our subject in we have to move twice as far away, thus restoring the DOF.
There are lots of rules of thumb that cover these sort of issues that are better suited to the practicalities of taking photographs, but they are not always strictly correct. That bit is the small print...
Comment by johnriley posted on A question for the Gurus at 22/11/2010 - 08:25
Comment by johnriley posted on What do you shoot? at 21/11/2010 - 22:29
I'm not sure this comment is exactly fair
The S9600 was nowhere near as good and actually quite disappointing.
I can only report what I find.
Comment by johnriley posted on K7 poor image quality at 21/11/2010 - 17:27
If the people who buy images require this, then it seems to me that there's something worth taking note of.
Certainly bridge cameras already use more aggressive sharpening, so you might find +2 sharpness more like what you are used to. Worth a try anyway!
Comment by johnriley posted on K7 poor image quality at 21/11/2010 - 17:15
Comment by johnriley posted on gallery posts. at 21/11/2010 - 16:35
Was it new? If it was second hand perhaps the previous owner has set something oddly, or perhaps the camera and/or lens are damaged.
There is a reset to factory defaulots option in the menu. After that, set maximum quality levels in JPEG Premium setting and you should have no problem. 200ISO is a good place to start with sensitivity. Make sure that camera shake is not a problem, use centre-spot AF and set Daylight WB. If there is still a problem it may be as simple as a fault, in which case that needs addressing.
Comment by johnriley posted on K7 poor image quality at 21/11/2010 - 16:33


I'm not referring to any individual when I say that by the way!