Search results for 'sensor cleaning' - page 104
Value for the money
Fringing isn't a problem on the older 6 meg sensor, infact on the K110 I've had some realy good shots.:wink: But for some reason on the K200, wide open and full zoom presents fringing at the edges. Does this happen on the K10 and K-m which have, I understand, the same 10 meg sensor?:?: i found th...
Posted by scottthehat on 19/04/2009 - 19:41
Wide angle question/favour
Well you keep asking and you didn't look so here's a photo at 10mm No, I have looked already, However I would like it to be compared with something for comparison, against my sigma 28mm(obviously 42mm on cropped sensor) The main reason for the wide angle are for family group portraits and wi...
Posted by foxycce on 20/04/2009 - 23:31
Wide angle question/favour
However I would like it to be compared with something for comparison, against my sigma 28mm(obviously 42mm on cropped sensor) You still haven't quite grasped focal lengths yet I don't think (reading again). If you're looking for a comparison between what you have at the moment (a 28-200 zoom), ...
Posted by Daniel Bridge on 21/04/2009 - 00:45
Wide angle question/favour
However I would like it to be compared with something for comparison, against my sigma 28mm(obviously 42mm on cropped sensor) No it is not 42mm. It is 28mm. The Sigma 10-20mm is 10-20mm. So compare 28mm with 10-20mm. It's as simple as that. I appreciate that you don't understand what the crop fac...
Posted by iceblinker on 21/04/2009 - 09:51
Wide angle question/favour
However I would like it to be compared with something for comparison, against my sigma 28mm(obviously 42mm on cropped sensor) You still haven't quite grasped focal lengths yet I don't think (reading again). If you're looking for a comparison between what you have at the moment (a 28-200 zoom), ...
Posted by foxycce on 21/04/2009 - 11:37
Wide angle question/favour
Foxy field of view (FOV) you don't write in MM als for field of view you need to know the distance of that field from the lens so I'm curious about your calculations. Angle of view (AOV) doesn't need an distance from the field to the lens since it doesn't have a field and to calcualte FOV you need ...
Posted by Anvh on 21/04/2009 - 11:46
Here at last! - DA* 60-250
Something from me, not a real life yet, just "from the balcony" ones. I tried some reals yesterday, but it was a bit late, sun was hidding, handheld and I've got a bit of mixed results, sometimes maybe too mixed, If weather good later on today, will try something proper. I tried one more balcony t...
Posted by piotro on 25/04/2009 - 11:32
How often do you change lens?
I tend to carry primes so on an average day's shoot probably 5+ times. Sometimes I just go out with one lens if I don't want to carry the kit bag (usually the FA43) but if I take several lenses with me then I always feel the need to make them pay their way. :wink: I do get dust on the sensor almo...
Posted by hefty1 on 01/05/2009 - 00:03
How often do you change lens?
I change the lenses whenever it's necessary. But most of the time, I change between 16-50mm and 60-250mm. I only use the Nokton 58mm for special situations, for example, low light or I want strong bokeh. I don't blow the sensor every time I use it, but on a regular basis, like once per week. 8)
Posted by fengyboy on 01/05/2009 - 00:16
How often do you change lens?
I agree with Dan on this. Change as often as you need to. if you agonise about getting dust in the works then just buy a 18-300 and be done with it. Dust will not ruin your camera if you are sensible when you change lenses, and you give the lenses and body a quick spruce-up when you get home. if ...
Posted by pschlute on 01/05/2009 - 08:26
How often do you change lens?
Thank you all for sharing your experience. Probably I was too worried with the dust and agree when you say that "the main reasons for having an SLR is the ability to choose the right lens for the shot". As to the dust, I read many posts, I understood that sensor has to be clean only when necess...
Posted by max11 on 01/05/2009 - 20:53
Can I use MY 35mm lens on Digital SLR ??
Hello moonstomp, in a word Yes, I have the Pentax SFXn, brilliant camera, very underrated, like the trap focus on it. However, you can use your 28-80mm AF lens on any of the Pentax digital bodies, but with the sensor used it becomes effectively a 42mm - 120mm, auto focus works with no problems.
Posted by Rees on 10/05/2009 - 17:44
Can I use MY 35mm lens on Digital SLR ??
Wlcome to the forum. Yes you could use that lens on a Pentax digital SLR. However, because the digital sensor is 1.5 times smaller than a frame of 35mm film, it would provide the same field of view as a 42-120mm lens on film. You will need another lens for wide angle. For a small and quite ine...
Posted by iceblinker on 10/05/2009 - 17:46
What should be a grade of 'E+' of used lenses? Careful!
Writing up here with great disappointment. Ordered two lenses from Ffordes, Scotland. one of these is a SMC 135mm f/2.5 in M42, rated at'E+', which means 'sign of use'there and also some other stores. as i was told before, 'E+'is 'sign of use' but opticlly no damage and marks. back to theme. I found...
Posted by brightstone on 14/05/2009 - 17:59
50mm lenses
What Stefan suggests is a good idea. Try manual focus yourself with your current lens. However, modern AF lenses dont have the smooth and long focus throw that the older lenses have. It is easier to manualy focus a manual lens. But to be honest if you are to go down the manual focus route I sugge...
Posted by pschlute on 14/05/2009 - 22:31
Help & Question
And just to show how helpful we are around here, here's a link where you can download the firmware (scroll down the page) Oh & OS stands for Optical Stabilisation (we Pentax users have sensor stabilisation so don't need it) hence the lack of switch. P.S. Welcome to the forum.
Posted by RR on 18/05/2009 - 18:56
Dumb question of the day
Yes the lenses are round, but the film gate/sensor gate is not....
Posted by johnriley on 19/05/2009 - 20:28
Dumb question of the day
Yes the lenses are round, but the film gate/sensor gate is not.... Well spotted John, and that dictates a difference to the shape of the lens hood how, exactly?
Posted by Mannesty on 19/05/2009 - 20:36
Dumb question of the day
Now Peter, I thought you were going to absorb some alcohol....OK then, lets see where it leads us. The field of view of the lens is what we want the "film" to receive, and nothing outside of that. So a round hood that is just wide enough for the 24mm side would obscure the 36mm side, so it needs ...
Posted by johnriley on 19/05/2009 - 20:45
Dumb question of the day
Now Peter, I thought you were going to absorb some alcohol....OK then, lets see where it leads us. The field of view of the lens is what we want the "film" to receive, and nothing outside of that. So a round hood that is just wide enough for the 24mm side would obscure the 36mm side, so it needs ...
Posted by Mannesty on 19/05/2009 - 21:20
