Search results for 'sensor cleaning' - page 677
Full Frame Pentax!!!!!!!
Focal length does not change. Yes I know, but the field of view is different when it's focussed on a different sensor format. If larger sensors are not an advantage I would ask why are Pentax launching a medium format digital? Larger sensors clearly have an advantage when used with longer focal l...
Posted by K10D on 23/01/2010 - 20:30
Full Frame Pentax!!!!!!!
Sorry, I don't understand your points, K10D. I don't believe there is much (if any) advantage in a FF sensor over APS-C if you are going to crop it by a factor of 1.5 to blow up your pictures to make up for not having a longer lens. To take FULL advantage of FF, you need longer lenses. Or a...
Posted by iceblinker on 23/01/2010 - 20:56
Full Frame Pentax!!!!!!!
Sorry, I don't understand your points, K10D. I don't believe there is much (if any) advantage in a FF sensor over APS-C if you are going to crop it by a factor of 1.5 to blow up your pictures to make up for not having a longer lens. Surely to take FULL advantage of FF, you need longer lenses? ...
Posted by K10D on 23/01/2010 - 21:12
Full Frame Pentax!!!!!!!
But what you get with FF (apart from a fab viewfinder) is even more control over depth of field (or rather, lack of it). I can quite see the argument that for people who tend to use long lenses, then smaller sensors have their advantages. But most of my time is spent from wide angle to moderate te...
Posted by JonSchick on 23/01/2010 - 21:53
Full Frame Pentax!!!!!!!
I disagree. There are physical issues to deal with and - well, Canon's already backing down on MPs in compacts. I read an interesting article the other day, talking about "why FF?" and they were promising the above - i.e. APS-C will soon be so good, noone will want FF. Thing is, the article's fro...
Posted by bretti_kivi on 23/01/2010 - 22:17
Full Frame Pentax!!!!!!!
BTW even the 645D is going to be a crop sensor :wink:
Posted by Anvh on 23/01/2010 - 23:34
Full Frame Pentax!!!!!!!
I'm just thinking that as the sensor is larger to start with, if you have a 18PM FF camera then with the extra megapixels you can crop it to give the same effective length as a 1.5 crop 12MP APS-C at its largest. I hate to be the one to urinate on the meat grilling aparatus, but acording to my ca...
Posted by Mongoose on 25/01/2010 - 17:49
Full Frame Pentax!!!!!!!
I'm just thinking that as the sensor is larger to start with, if you have a 18PM FF camera then with the extra megapixels you can crop it to give the same effective length as a 1.5 crop 12MP APS-C at its largest. I hate to be the one to urinate on the meat grilling aparatus, but acording to my ca...
Posted by K10D on 25/01/2010 - 17:57
Full Frame Pentax!!!!!!!
A 300mm on my K7 provides exactly the same target object size as a 300mm on my D700. The D700 has less DOF and a larger FOV. Surely if you've got a 300mm on each, the DoF is the same. Granted, if you were to use a 200mm on the K-7 to get the same FoV, then the DoF would be greater. Dan Can't go ...
Posted by K10D on 25/01/2010 - 19:29
Full Frame Pentax!!!!!!!
[quote:3496ace15f="K10D"]A 300mm on my K7 provides exactly the same target object size as a 300mm on my D700. The D700 has less DOF and a larger FOV. Surely if you've got a 300mm on each, the DoF is the same. Granted, if you were to use a 200mm on the K-7 to get the same FoV, then the DoF would be ...
Posted by Daniel Bridge on 25/01/2010 - 19:43
Full Frame Pentax!!!!!!!
[quote:3496ace15f="Daniel Bridge"][quote:3496ace15f="K10D"]A 300mm on my K7 provides exactly the same target object size as a 300mm on my D700. The D700 has less DOF and a larger FOV. Surely if you've got a 300mm on each, the DoF is the same. Granted, if you were to use a 200mm on the K-7 to get th...
Posted by K10D on 25/01/2010 - 19:52
Full Frame Pentax!!!!!!!
Dan, I used to use the same argument. However, the argument for the DOF changing is that the end product is a, say, 10 x 15 print. And to end up at that the APS-C image has to be enlarged more and therefore the circle of confusion, that originally has the same size on the sensor, is bigger for th...
Posted by Prieni on 25/01/2010 - 20:03
Full Frame Pentax!!!!!!!
Dan, I used to use the same argument. However, the argument for the DOF changing is that the end product is a, say, 10 x 15 print. And to end up at that the APS-C image has to be enlarged more and therefore the circle of confusion, that originally has the same size on the sensor, is bigger for th...
Posted by Daniel Bridge on 25/01/2010 - 20:13
Full Frame Pentax!!!!!!!
But if you're cropping the FF sensor's image down to APS size, then the enlargement to a 10x15 print is exactly the same. Therefore the DoF is the same. If you move forward, and to get the subject the 'same size' on the FF sensor, then it will require less enlargement at the printing stage, and wi...
Posted by Prieni on 25/01/2010 - 20:25
Full Frame Pentax!!!!!!!
Yes Prieni we should also take into account the CoC if we want to do it correctly. Going a bit further I know what the others are talking about with FoV but FoV is not the term to use in photogrphy. It would be true with all other subjects but FoV as a different meaning in photography, the term ...
Posted by Anvh on 25/01/2010 - 20:28
Full Frame Pentax!!!!!!!
K10D, I don't know what APS-C mode on the D700 does because I don't do Nikon. Please instead let's get straight to the point: Do you agree or disagree that, compared to what you would use on APS-C for the same images, longer lenses are needed on FF to have the full advantage of FF? APS C on a D70...
Posted by K10D on 25/01/2010 - 21:02
Full Frame Pentax!!!!!!!
I believe 35mm is a different market then APS-C, why else would Canon bring out the D7? Also if sensor size is so important then the 645D will blow al those 35mm cameras away :wink: But like said, you buy a camera for a specific purpose, the APS-C is for most now the best compromise. For my...
Posted by Anvh on 25/01/2010 - 21:12
Full Frame Pentax!!!!!!!
The confusion between the different focal lengths and sensor size is not that complicated really. Take a postcard. Imagine that is a photograph taken full frame. Take a scalpel and cut out the middle 2/3rds. That is your APS-C image. Job done. K.
Posted by womble on 25/01/2010 - 21:37
Full Frame Pentax!!!!!!!
But if you're cropping the FF sensor's image down to APS size, then the enlargement to a 10x15 print is exactly the same. Therefore the DoF is the same. If you move forward, and to get the subject the 'same size' on the FF sensor, then it will require less enlargement at the printing stage, and wi...
Posted by Daniel Bridge on 25/01/2010 - 22:24
Full Frame Pentax!!!!!!!
[quote:3496ace15f="Mike-P"]I'm just thinking that as the sensor is larger to start with, if you have a 18PM FF camera then with the extra megapixels you can crop it to give the same effective length as a 1.5 crop 12MP APS-C at its largest. I hate to be the one to urinate on the meat grilling apar...
Posted by Mongoose on 25/01/2010 - 23:16
