All Forum Comments
Comment by MattMatic posted on Guidance on HDR setup on k10d at 16/03/2009 - 12:12
My mistake Beakynet
I'll check my K20D again
Matt
I'll check my K20D again
Matt
Comment by MattMatic posted on Exposure Locking at 14/03/2009 - 11:29
Web site information is Maurice Shephard, London:
http://www.whois.net/whois_new6.cgi?d=softshop24&tld=com
Does it sound too good to be true?
Yup.
It is
Matt
http://www.whois.net/whois_new6.cgi?d=softshop24&tld=com
Does it sound too good to be true?
Yup.
It is
Matt
Comment by MattMatic posted on Cheap Photoshop at 13/03/2009 - 21:11
BE WARNED!
It is not "locking" AE at the same as AF, but linking the AF point into the AE system.
When you do that, it only takes the segment where the AF point is and ignores the rest.
For example, you have the metering set to "Matrix Evaluative", and you enable the custom function. Now you use centre AF point and when the camera locks a focus on the centre AF, you effectively get spot metering!
What's worse, is that if the AF system does not detect a focus lock then the metering goes back to evaluative!!!
You can prove this the following way:
1) Enable the custom function for link AF & AE
2) Disable focus-on-half-press (custom function)
3) Point at a scene with some contrast in it.
4) Hold down the AF button to do a focus lock and the metering will change!
5) Release the AF button and it'll change back.
It gets even more odd if you are using MF lenses!
I'm sure it has a use... but I've messed up the exposure on too many shots thinking that linking AF & AE was a "good idea" I only recently discovered why the metering seemed so "all over the place".
Does that answer the question??
Matt
It is not "locking" AE at the same as AF, but linking the AF point into the AE system.
When you do that, it only takes the segment where the AF point is and ignores the rest.
For example, you have the metering set to "Matrix Evaluative", and you enable the custom function. Now you use centre AF point and when the camera locks a focus on the centre AF, you effectively get spot metering!
What's worse, is that if the AF system does not detect a focus lock then the metering goes back to evaluative!!!
You can prove this the following way:
1) Enable the custom function for link AF & AE
2) Disable focus-on-half-press (custom function)
3) Point at a scene with some contrast in it.
4) Hold down the AF button to do a focus lock and the metering will change!
5) Release the AF button and it'll change back.
It gets even more odd if you are using MF lenses!
I'm sure it has a use... but I've messed up the exposure on too many shots thinking that linking AF & AE was a "good idea" I only recently discovered why the metering seemed so "all over the place".
Does that answer the question??
Matt
Comment by MattMatic posted on Exposure Locking at 13/03/2009 - 09:54
This is my take on SR...
To SR or not SR depends mainly on the shutter speed rather than what you are mounting the camera on. There are, IMO, two factors:
1) Shutter speed
2) Amount of movement
If the shutter speed is too long, then SR can introduce a measure of blurriness.
If the amount of movement is extremely low (as when using a tripod) then SR again can introduce a measure of blurriness.
So, if I'm using a Monopod with a 320mm lens and trying to shoot at 1/30s, then I'll use SR. It's likely that subject movement will dominate in the blurriness scale anyway!
If I'm using a tripod, then I'll use the 2 second delay (which does a mirror lock-up). This mode automatically disables SR anyway (even if you have the switch set to "SR On").
There is, however, one "bug" that has caught me out
If you only use the "AF" button to focus, so the shutter release does not do autofocus, then pressing the shutter release too quickly with SR on can blur the image. The situation was this - I was taking some shots at a wedding, with everyone in the same place (so focus didn't need to be adjusted), and the groom laughed - so my instinctive reaction was to take the shot. The result was blurred - but the shutter speed would definitely not explain it (1/60s at about 40mm). Later tests showed that the SR could be "tricked" into thinking there was camera movement, but the SR hadn't had time to stabilise and the shot was taken with SR "over compensating".
Just one to watch out for
Matt
To SR or not SR depends mainly on the shutter speed rather than what you are mounting the camera on. There are, IMO, two factors:
1) Shutter speed
2) Amount of movement
If the shutter speed is too long, then SR can introduce a measure of blurriness.
If the amount of movement is extremely low (as when using a tripod) then SR again can introduce a measure of blurriness.
So, if I'm using a Monopod with a 320mm lens and trying to shoot at 1/30s, then I'll use SR. It's likely that subject movement will dominate in the blurriness scale anyway!
If I'm using a tripod, then I'll use the 2 second delay (which does a mirror lock-up). This mode automatically disables SR anyway (even if you have the switch set to "SR On").
There is, however, one "bug" that has caught me out
If you only use the "AF" button to focus, so the shutter release does not do autofocus, then pressing the shutter release too quickly with SR on can blur the image. The situation was this - I was taking some shots at a wedding, with everyone in the same place (so focus didn't need to be adjusted), and the groom laughed - so my instinctive reaction was to take the shot. The result was blurred - but the shutter speed would definitely not explain it (1/60s at about 40mm). Later tests showed that the SR could be "tricked" into thinking there was camera movement, but the SR hadn't had time to stabilise and the shot was taken with SR "over compensating".
Just one to watch out for
Matt
Comment by MattMatic posted on should shake reduction on(mono pod) at 13/03/2009 - 09:42
Quote:
I did so want a little MF/AF switch though!
Two options:I did so want a little MF/AF switch though!
1) Switch to MF on the body
2) Use the custom menu to turn off "Focus on half-press" and just use the dedicated "AF" button on the back.
I use option 2 - kind of "Auto focus on demand". Much prefer it to anything else
Matt
Comment by MattMatic posted on Pentax 17-70 Quick-Shift Manual Focus? at 12/03/2009 - 15:02
I'm not even sure viewfinder has any Pentax gear... let alone dealt with SRS
But I could be wrong...
Matt
But I could be wrong...
Matt
Comment by MattMatic posted on Can SRS Microsystems be trusted? at 12/03/2009 - 12:12
It means you can turn the focus ring manually even when the lens and body are in "AF" mode.
So, you can half-press and get the camera to focus, then hold while you adjust the focus ring manually
Matt
So, you can half-press and get the camera to focus, then hold while you adjust the focus ring manually
Matt
Comment by MattMatic posted on Pentax 17-70 Quick-Shift Manual Focus? at 12/03/2009 - 12:12
FWIW, LZW and ZIP are both definitely lossless
(It'll depend on the image content as to which will give a smaller file size.)
(It'll depend on the image content as to which will give a smaller file size.)
Comment by MattMatic posted on Processing Raw Photos at 10/03/2009 - 11:34
Indeed it will
The *ist-D and *ist-DS have P-TTL support (can't remember if the *ist-DS2 had it or not )
Matt
The *ist-D and *ist-DS have P-TTL support (can't remember if the *ist-DS2 had it or not )
Matt
Comment by MattMatic posted on *Ist DS & Pentax AF240ft at 07/03/2009 - 18:59
I shoot RAW and ensure that all 5 exposures are processed to TIFF using exactly the same settings and then blended in Artizen.
I have it all saved under the "User" menu so I can recall and use immediately
The only small downside of the K10D and HDR is you have to press the shutter for each of the shots. The K20D added a custom feature that would take all shots with one shutter release.
Works for me
Matt