Search results for 'sensor cleaning' - page 293
Sensor noise?
Pete with f/18 FOD also because a problem, better to use the lens wide open and OOF.
Posted by Anvh on 08/04/2010 - 20:09
Sensor noise?
Thanks for the comments, both of you. But I think you are missing the point of the exercise. Mannesty claimed I had noise specles in the background in my Full Moon picture, and I suspected this to be sensor background noise. Therefore I assumed that a short exposure at a dark level (lens cap on) ...
Posted by terje-l on 08/04/2010 - 21:46
Sensor noise?
looks like fairly normal dark current to me. I get this sort of thing off my scientific grade CCDs if I operate them at room temp so not at all surprised to see it on a normal camera sensor.
Posted by Mongoose on 09/04/2010 - 15:41
K-x v K10
One of the frustrating things about my K10 has been its performance in low light, at high ISO. While it has been demonstrated on PU that a K10 can take less noisy images when properly exposed, I perhaps haven't been as skilled or as fortunate. I was asked to shoot the rehearsal of some orchest...
Posted by i-Berg on 08/04/2010 - 13:58
Focus adjustment - again
Focus adjustments apply small corrections to the autofocus system. A manual focus lens does not make use of the autofocus mechanism. yes it does! :) You can have the AF active while you manual focus and it give you a signal when the AF thinks the lens is in focus. Also with the rest of your com...
Posted by Anvh on 10/04/2010 - 16:59
K-x problem at 1/125th
The KX sensor shake problem is widespread - a recent poll on another site indicated that 34% users had the problem anywhere between 1/125 and 1/60 sec. I thought batteries might be implicated but having tested freshly charged batteries, I still have the problem. It is obviously more visible wi...
Posted by jlaubza on 21/04/2010 - 13:58
K-x problem at 1/125th
The KX sensor shake problem is widespread - a recent poll on another site indicated that 34% users had the problem anywhere between 1/125 and 1/60 sec. I thought batteries might be implicated but having tested freshly charged batteries, I still have the problem. It is obviously more visible wi...
Posted by felix on 03/05/2010 - 01:26
Oh no. New cam. First DSLR. Probs. Second hand cam ?
Hi all. First post on these forums and it’s a problem sorry. Purchased a kx kit with 55 and 300mm lenses from Jacobs. The camera arrived at around 10am on Saturday 27th March. I arrived home at around 11:45am. Had a cuppa. Unpacked the camera and went outside to take some test pics in the gard...
Posted by Nick_H on 10/04/2010 - 12:38
Oh no. New cam. First DSLR. Probs. Second hand cam ?
Hi Nick, welcome to the Forum and glad to have you aboard. Sorry to hear you are having a problem. Would it be possible for you to post a few pics showing the marks (not necessarily in the Gallery, but to this thread)? Not being too bright myself, I probably can't help, but other members may be able...
Posted by StephenLewis on 10/04/2010 - 12:58
Oh no. New cam. First DSLR. Probs. Second hand cam ?
When I bought my Samsung GX-20 (Pentax K20D clone) it arrived with the sensor covered in dust spots. Since the camera was only recently released at that time I doubt I got a returned camera. I tried the camera dust shake mechanism but that did not help. I then used a rocket blower but a lot of du...
Posted by mera on 10/04/2010 - 14:08
Oh no. New cam. First DSLR. Probs. Second hand cam ?
Dust is everywhere like John says, nothing you can do about it. One thing that I do notice is that I've no less problem with dust then I use to have. I remember cleaning my camera almost monthly in the beginning but now it hasn't been cleaned for almost half a year. I also already have cleaned ...
Posted by Anvh on 10/04/2010 - 14:22
Oh no. New cam. First DSLR. Probs. Second hand cam ?
To reduce the risk of dust on the sensor learn to change lenses with the body opening facing down. I use my trusty Arctic Butterfly brush to clean mine. However you decide to physically clean it do make sure the battery is fully charged before you start. Don't be nervous of doing it. Good luck...
Posted by Gwyn on 10/04/2010 - 14:48
Oh no. New cam. First DSLR. Probs. Second hand cam ?
Another good idea is to turn the camera off when changing lenses, if possible, so that the CCD isn't charged while exposed (no doubt someone will tell me this is an old wives tale lol). Does anyone use one of those nylon bristled lens cleaning brushes (the type with a built in blower)? I've thoug...
Posted by Pentaxophile on 10/04/2010 - 16:25
Oh no. New cam. First DSLR. Probs. Second hand cam ?
Dust is one problem and the fact it is immovable with basic cleaning along with the 750 exposures before purchase does suggest something odd and you may be right about it being a return or ex demo. A new camera will have a few exposures from testing and QA but not that number. You need to call...
Posted by polchraine on 10/04/2010 - 17:23
Oh no. New cam. First DSLR. Probs. Second hand cam ?
You need to call Jacobs today or tomorrow and tell them that you will be returning it as you believe they have supplied faulty goods - see how they react. This seems excessive, particularly as the file number may be due to using an old SD card or the like. Nick has not yet told us what the actual n...
Posted by Adqam on 10/04/2010 - 18:10
645D photos (from Pentax)
Thank you I-berg, I already spotted that and there are also around 30 youtube movies about the show they gave but all is in Japanese sadly so didn't understand a thing :( Still would love to see the 40mp photo though but we would never seen those I think, you might try to look for photos taken wi...
Posted by Anvh on 12/04/2010 - 13:17
645D photos (from Pentax)
Seems the zoom version on Pentax site is pretty close to 50%. Here are is full size photo of the hassblad H4D-40 which has the same sensor.
Posted by Anvh on 12/04/2010 - 14:34
Which Pentax digital SLR
I've checked the Curry's website but they don't have them in store for pickup.. I don't know if they have any to test. PC World do, however there doesn't seem to be any in stock at Medway or Lakeside but they do have them in Basildon and Crayford, if you're in Chatham, of course. They may still have...
Posted by BentlyTCow on 22/04/2010 - 18:24
Which Pentax digital SLR
I've checked the Curry's website but they don't have them in store for pickup.. I don't know if they have any to test. PC World do, however there doesn't seem to be any in stock at Medway or Lakeside but they do have them in Basildon and Crayford, if you're in Chatham, of course. They may still have...
Posted by robbie_d on 23/04/2010 - 11:34
Depth of field-hyperfocal distance
I use both full frame and APS Pentax lenses eg both the AF ltd series and the DA*'s. The scales on the ltd lens are of no use with a digital SLR because of the crop factor and the modern lenses have no scales. Of course the scale works, nothing about the lens change the only thing that effects the ...
Posted by Anvh on 24/04/2010 - 20:38
