Search results for 'sensor cleaning' - page 715
Photographing street lighting
Wha-hey! My field of expertise. I am a lighting engineer and am currently the Chairman of the Scottish Region of the Institution of Lighting Professionals (formerly Institution of Lighting Engineers). I currently work as the street lighting engineer for a local authority. As far as photographing ...
Posted by RAB on 06/10/2012 - 20:14
I LIKE Snootchies Pentax Artist stuff
Having a science background should be an advantage in any artistic field of endeavour. In photography, for example, an understanding of the physics of light, lenses and the camera sensor, should benefit the production of images that are good in their material quality. But, of course, it must be more...
Posted by MrB on 13/10/2012 - 09:15
SRS Open Day - Saturday 3rd November
I'm rather glad I can't make this open day either. I suspect the 560mm would need rather a lot of cleaning after I'd extracted it from where I'm sure my wife would shove it.
Posted by Mannesty on 18/10/2012 - 17:30
SRS Open Day - Saturday 3rd November
I'm rather glad I can't make this open day either. I suspect the 560mm would need rather a lot of cleaning after I'd extracted it from where I'm sure my wife would shove it. Peter - I though it was NIKON that made colonoscopy equipment, not Pentax??!! :D:D:D
Posted by steven9761 on 18/10/2012 - 17:45
Our Great Photo Processing Shootout!
I'm afraid there is no way that any RAW image (which is not even a photograph really!), can somehow be considered in any way 'pure' or a natural rendering of a scene. It is just a data record of everything the sensor could detect - every detail, colour tone and brightness value - even if none of the...
Posted by McGregNi on 20/10/2012 - 14:42
Our Great Photo Processing Shootout!
Theres my point John - it looks better to you! Personally I prefer David's original version - Wait a sec - there's no such thing as an 'original version'. There's a RAW file (which only David & I have) and two photos generated from that RAW file. The RAW file is just a collection of camera data (li...
Posted by McGregNi on 20/10/2012 - 17:56
Our Great Photo Processing Shootout!
I have been trying to sell the idea that if possible we should strive to make as many global & finer adjustments purely with the RAW data . . .. Lightroom is a different concept. I hope to be able to put it to a test very soon! If I have correctly interpreted what you have written, you have a sl...
Posted by Mannesty on 21/10/2012 - 09:29
old lens on new camera ?
SnoozeMoose - I was talking about using an olympus DSLR body - I was hoping, and sounds like it is the case, that this issue will go away with the Pentax Body. On the Focus/DoF issue, I think that you need to go back to the circle (sphere) of confusion (or do we have enough confusion?) and accept...
Posted by blob on 09/11/2012 - 08:44
old lens on new camera ?
I assume you're right Greg - I wouldn't know becuase it's 10x easier to focus/recompose than move the AF point using the arrow buttons. Another point to bear in mind is that the AF sensor picks up a larger area than the red dot you see on the screen, leading to false focus confirmation. This hap...
Posted by Pentaxophile on 11/11/2012 - 15:45
Billingham Hadley Large/Pro
No problem, glad to help. Just to explain if anyone wondered: The reason I store the camera lens down is partly to let any dust fall out of rather than into the shutter/sensor area. Also it makes access faster. The superflex insert is necessary as it stops the weight of the camera plus lens resti...
Posted by johnriley on 07/11/2012 - 16:41
Billingham Hadley Large/Pro
On a more serious note, when I was looking for a larger camera bag recently I had a look at some of the Billingham bags in a local camera shop. Nice, but exensive. Really expensive. I ended up getting a which seems very similar to the Billinghams and their ilk for a very small fraction of the p...
Posted by MarkTaylor on 07/11/2012 - 22:53
Billingham Hadley Large/Pro
Had the dividers today and (almost) filled the bag up. I know John has often recommended the Hadley Pro/Large, but I'm amazed how much kit can fit into such a small seeming bag. Just thought it might be useful for anyone else considering one of these what I would manage to get in, comfortably. ...
Posted by milamber on 09/11/2012 - 14:49
The Meaning Of Moire
Its great fun Andrew! All the other Pentax DSLRs (and indeed most others) have what is called an anti-aliasing (AA) filter in front of the sensor. The K5IIs doesn't. The AA filter removes interfence patterns such as AndrewK's link shows. So if there is a fine repeating pattern that you are trying...
Posted by alfpics on 15/11/2012 - 12:01
The Meaning Of Moire
As an aside, if you blur your eyes on the moire generator, the effect lessens. This is very similar to what the AA sensor on the camera does!
Posted by Cuchulainn on 15/11/2012 - 16:53
wireless cable release for long exposures?
I did buy a cheap one from Ebay ages ago but it doesn't keep the shutter open in bulb mode, another problem is that it has quite a narrow range so it won't work unless I'm stood in front of the - does anyone know if the SRS ones operate from behind ? I think whether the IR remote can reliably be us...
Posted by elfer on 15/11/2012 - 23:05
wireless cable release for long exposures?
I did buy a cheap one from Ebay ages ago but it doesn't keep the shutter open in bulb mode, another problem is that it has quite a narrow range so it won't work unless I'm stood in front of the - does anyone know if the SRS ones operate from behind ? thanks Simon There's a menu option on the ...
Posted by geordie01 on 16/11/2012 - 07:38
wireless cable release for long exposures?
I have a very cheap IR remote bought off ebay and it works perfectly for long exposures in bulb mode with both K-x and K-5 (K-x only has a sensor on the back, K-5 has one front and back). You just need to ensure you have the menu option 'Remote in Bulb Mode' set to one press open and one press cl...
Posted by davidstorm on 16/11/2012 - 22:34
Wide Angle Lens Advice
I've had the Samyang 14mm a couple of months now, and as I've reported here before am very pleased indeed. Check out the previous posts and examples : Distortion keeps getting referred to. On the test charts I saw before buying it is limited to the outer reaches, and after all for now w...
Posted by McGregNi on 19/11/2012 - 00:05
How sensitive is your camera?
This possibly due to light transmission through the different lenses rather than any body or sensor issues...
Posted by cabstar on 20/11/2012 - 12:35
How sensitive is your camera?
This possibly due to light transmission through the different lenses rather than any body or sensor issues... Good point, but if I put my K to Q adapter on the Q and use the same lens on both cameras I get exactly the same result, pretty sure it's differences in the sensors, it's the only thing I ca...
Posted by screwdriver on 20/11/2012 - 12:42
