Search results for 'sensor cleaning' - page 210
Pentax K12D on its way?
Kind of sounds much like this: https://www.pentaxuser.com/forum/viewtopic.php?t=5015 In the next generation, I would like a couple of things that are not available on the K10D. I want a Flash Synchro-X input, so I don't need to put an adapter in the Hot Shoe. I would also appreciate a CF card s...
Posted by MattMatic on 23/07/2007 - 16:47
Need help from a newbi pentax owner
They take longer to put on and take off as well as reduce the amount of light getting to the sensor. Once extra piece of glass isn't that bad, and the coatings Raynox use are decent. Admittedly it is a convenience thing again, but seeing as you have a convenience zoom, I'd probably go with the ad...
Posted by Tyr on 30/07/2007 - 10:55
K10D Lens
Hi Yes i have one and its really good. In fact a wildlife print i took was voted 2nd place at my camera club, taken with this lens. Now im using a K10 and with the motion sensor switched on and hand held its very sharp at the full focal length. Regards
Posted by damperman on 26/07/2007 - 18:25
ISO on K100D
The reason this camera starts at 200 is because that is what is native to the sensor. An ISO 100 native sensor will have the same amount of noise at ISO 100 as a native ISO 200 sensor set to ISO 200. This means you actually get less noise for each ISO stop with a native ISO 200 sensor. Secondly 6MP ...
Posted by Tyr on 25/07/2007 - 19:37
manual focus problems on k10d
What I don't understand is not noticing this before. Unless this sort of problem can "develop" (can it?). In answer to your questions Chris (not at all dumb as I don't know what you mean by the "green hexagon". Yes, I'm using the spot focusing setting not on 'Sel' I...
Posted by photo*ist on 31/07/2007 - 09:09
manual focus problems on k10d
Depth of field will render some sharpness to either side of the plane focused on and is generally well understood. There is also some leeway in a similar way at the point the lens focuses the image on - the point where the film or CCD would be optimally placed. This is depth of focus. The mirr...
Posted by johnriley on 31/07/2007 - 09:10
manual focus problems on k10d
but might use f8 to ensure the whole face is in focus. Maybe under studio flash we would use f11 or f16. DOF will cover most things in this case. This is precisely why I don't think the sharpness of normal shots is at all a good measure of whether the camera is working right. DOF would mask focus...
Posted by ChrisA on 31/07/2007 - 09:19
manual focus problems on k10d
He, he, followed the directions for assessing where the focus points are located. Simple enough. it seems my focusing is a tad bit off center, as I have seen in th past. This may also be why I assumed my focus was off (faulty assumptions that focus was in the center, and extremely narrow DOF). ...
Posted by amoringello on 31/07/2007 - 21:56
Just arrived this morning
It is an SLR not a point and shoot. It has a mirror and shutter in front of the sensor which means it is not exposed at all times to the light coming through the lens. You can only use the viewfinder to take a picture. There are some DSLRs that have a 'live view' mode but this either makes the vi...
Posted by Tyr on 30/07/2007 - 15:15
Cheap ebay radio flash triggers
Thanks for all the help on this question - I've been playing with the optical/radio solutions and I wanted to give something back to the forum on my experiences in case any other people are following the remote flash/strobist route. I initially went for the cheap (6 quid each) cube optical slave...
Posted by rtunstal on 12/10/2007 - 09:38
SENSOR
HI THIS IS MY FIRST POST I HAVE A*IST DL 2 WHICH IS 8 MONTHS OLD WHICH HAS JUST COME BACK FROM PENTAX AS THE SENSOR HAD TO BE CLEANED IS THIS NORMAL FOR A CAMERA THIS NEW AND CAN I CLEAN IT MYSELF
Posted by PHOTOWAM64 on 06/08/2007 - 21:41
SENSOR
Hello and welcome to the forum. Yes, you can clean the sensor yourself - there are suitable kits available from dealers. Sometimes, inevitably, some dust gets on to the sensor and it can be quite annoying. The best cure is to keep the dust at bay as much as possible. So always turn off the cam...
Posted by johnriley on 06/08/2007 - 21:52
SENSOR
John, I still find it amazing that you've never had any dust on your sensor. I'd be really interested in seeing a pic of a blue sky or white wall at f/16 or f/22 to see how dust free 'dust free' is for you. I wouldn't say I've ever really had a problem with dust, but I do get dust on my sensor. ...
Posted by Daniel Bridge on 06/08/2007 - 22:03
SENSOR
Dan, just for you I will do the requested test and we shall see.... You might be amazed, or alternatively I might have to hang my head in shame and retreat back to my darkroom. As soon as I can I'll post something, but it's likely to be a few days. 8)
Posted by johnriley on 06/08/2007 - 22:07
SENSOR
OK, here's a sky shot at f8, perhaps that will do for now: Pentax K10D, SMC Pentax-DA 16-45mm, 1/350s, f8
Posted by johnriley on 06/08/2007 - 22:16
SENSOR
:D No shame if it's not as you expect, it's just that dust has never encroached on you pics, and undoubtedly your methodical and careful lens changes will have helped enourmously there. I on the other hand are often in the middle of a windy meadow, or grubbing around in the dirt, so I can only e...
Posted by Daniel Bridge on 06/08/2007 - 22:18
SENSOR
Oh, posts crossed, but I can't see the pic. Dan
Posted by Daniel Bridge on 06/08/2007 - 22:19
SENSOR
I had a dust problem with my *istD but got quite used to cleaning it effectively. I used to test for dust by shooting a white wall in good light without a lens attached. I got into the habit of doing that before any significant shoot. After several thousand exposures on the K10D, I've not yet ...
Posted by lenscape on 06/08/2007 - 22:21
SENSOR
I used to test for dust by shooting a white wall in good light without a lens attached. Dust shows up more at small apertures, so I would have thought that this test was less likely to show dust than with a lens attached. :? I'll have to try it. Dan
Posted by Daniel Bridge on 06/08/2007 - 22:23
