Search results for 'sensor cleaning' - page 725
cleaning inside the camera
Nothing. Never touch the mirror or mirror mechanism. If that gets out of alignment so does you ability to manually focus and see when the camera is focused properly. In a camera's lifetime you should be able to get by without cleaning the mirror. Odd specks of dust won't have any effect on the im...
Posted by johnriley on 22/09/2013 - 12:31
cleaning inside the camera
Yeah I don't think the mirror is a focal plane so like, for example, the lens front element any particles on it won't affect the image.
Posted by Smeggypants on 22/09/2013 - 13:06
cleaning inside the camera
John's advice is spot on. Unlike your bathroom mirror, where the silvering is on the back - with a glass surface facing you, the reflecting surface on an SLR camera is on the front and is incredibly easy to damage. A cotton bud will scratch the surface so will a lens tissue! A gentle waft of c...
Posted by doingthebobs on 22/09/2013 - 13:13
Split focus screen for K-30
I'm a big fan of the Katzeye but I don't have focus-peaking or even live-view on my K200D. I find the KE essential for using my many manual lenses. Bear in mind that a new KE screen may need to be calibrated - I had to buy and install viewfinder shims with mine to make it 100% accurate, and that...
Posted by Jonathan-Mac on 27/09/2013 - 22:44
Split focus screen for K-30
Use the live view to get a correct focus at the sensor. Then, without touching the focus, look through the viewfinder and see if the Katzeye agrees. If not, change the shimming! Live view is great for checking focus (since it show the focus at the only point in the system that really matters - th...
Posted by Cuchulainn on 11/10/2013 - 12:43
Why no built-in ND filters?
the one on the Q is built into the lenses, not the camera. going below the base sensitivity on the sensor would cost dynamic range, and as we have all no doubt observed, digital sensors behave better with underexposure than they do with overexposure.
Posted by Mongoose on 02/10/2013 - 13:42
Why no built-in ND filters?
but the base ISO is a physical property of the sensor. I can't remember if any Pentaxes do it, but occasionally you see DSLRs with "expanded" ISO at both ends of the range, accessible via a custom function. This is the same thing, and it costs dynamic range.
Posted by Mongoose on 02/10/2013 - 14:41
Why no built-in ND filters?
It doesn't necessarily require an ND filter, a lower ASA setting would surely do the job? Lower ISO can be as noisy as a high ISO (higher than the noise you get at 800 or even 1600 on my K5) which is why it's in the extended ISO range, there's an optimum setting for ISO vs noise which varies from se...
Posted by screwdriver on 02/10/2013 - 14:53
Why no built-in ND filters?
[quote:3496ace15f="JAK"]It doesn't necessarily require an ND filter, a lower ASA setting would surely do the job? Lower ISO can be as noisy as a high ISO (higher than the noise you get at 800 or even 1600 on my K5) which is why it's in the extended ISO range, there's an optimum setting for ISO vs no...
Posted by michaelblue on 02/10/2013 - 15:10
Why no built-in ND filters?
It shouldn't be to difficult technically to have a mode that reads alternate lines from the sensor (similar to interlaced video) to build up a digital average. I feel it would be a nice creative feature. It could potentially allow good motion blur to be combined with shallow DOF...
Posted by petrochemist on 02/10/2013 - 21:32
Why no built-in ND filters?
Working in an interlaced mode wouldn't half the vertical resolution. Interlacing would give the ability to read one half of the lines while the other half are still recording the light input so that an average of multiple shots can be built up while minimising the chance of pulsed images. I'm not su...
Posted by petrochemist on 03/10/2013 - 10:26
Why no built-in ND filters?
my understanding of sensors is incomplete (in that the only one I've ever played with directly was a CCD, I don't know if they all work the same way or if CMOS makes a difference), but I think that would require a significant re-working of the sensor itself. in any case wouldn't your suggestion r...
Posted by Mongoose on 03/10/2013 - 10:57
Best Android app for photography
I recommend Camera Zoom Fx, but remember if the underlying sensor and lens is rubbish, then don't expect it to magically make your pictures awesome (Nexus 4 camera) If you auto upload your pictures with Google+ (you don't have to share and the default setting is private), it auto enhances the pi...
Posted by Pentaxonian on 12/10/2013 - 18:44
A decline in DSLR sales threatens camera companies
Interesting indeed... My own thoughts (and the article hit the nail on the head) is that the "casual consumer" no longer cares about image quality, possibly caused by "techno-babble" that claims that more megapixels = better photos. The added "bonus" of smartphones is that most (if not all) add g...
Posted by steven9761 on 14/10/2013 - 09:48
A decline in DSLR sales threatens camera companies
Can't see much of a future for traditional point and shoots, unless there is a phone in there too, The Camera Companies need to get on board! DSLR's are big and there is a backlash to this amongst the kids, they love Large sensor compacts, Nikon 1's and in the far east even the Q. Mirrorless 2x se...
Posted by jules on 14/10/2013 - 10:03
A decline in DSLR sales threatens camera companies
Interesting indeed... My own thoughts (and the article hit the nail on the head) is that the "casual consumer" no longer cares about image quality, possibly caused by "techno-babble" that claims that more megapixels = better photos. The added "bonus" of smartphones is that most (if not all) add g...
Posted by Smeggypants on 14/10/2013 - 18:11
A decline in DSLR sales threatens camera companies
this is the future. if Pentax wants a piece of it, I hope they bring out a fully modular LX-D model to compete with this. same FF sensor as this sony, but with all the features of the new k-3, but with interchangeable components like mirror less, half silvered mirror or full -dslr mirror boxes.. a...
Posted by Don on 14/10/2013 - 18:47
A decline in DSLR sales threatens camera companies
There is a serious discussion to be had around the optical viewfinder. That single 'option' requires significant hardware and space. Take that away, as you do when you use liveview, and you've got the same lens and sensor, just without the volume the optical viewfinder consumes. I'm a fan of th...
Posted by richandfleur on 15/10/2013 - 02:34
A decline in DSLR sales threatens camera companies
There is a serious discussion to be had around the optical viewfinder. That single 'option' requires significant hardware and space. Take that away, as you do when you use liveview, and you've got the same lens and sensor, just without the volume the optical viewfinder consumes. I'm a fan of th...
Posted by Smeggypants on 15/10/2013 - 02:51
A decline in DSLR sales threatens camera companies
There is a serious discussion to be had around the optical viewfinder. That single 'option' requires significant hardware and space. Take that away, as you do when you use liveview, and you've got the same lens and sensor, just without the volume the optical viewfinder consumes. I'm a fan of th...
Posted by TonyM on 15/10/2013 - 08:05
