DSLR Sensors - A Guide

[amjain10]

Thanks. Would the size of sensor also affect the fastest shutter speed thats allowed in Program mode. I just bought Panasonic G1 but I am restricted to shutter speeds of 1/10 in indoor settings(without flash). Would buying a camera with APS sensor(T2i) help in such a case?

 

[Josh66]

Anyone see any errors, or things that should be added?

Haven't had a chance to read the whole thread yet, so sorry if someone else already mentioned this:

- Full Frame sensors do not use a crop factor for lens focal length, and what you see is what you get with them.

Since you are looking through the lens on an SLR, what you see is always what you get. Doesn't matter if it's full frame or crop sensor.

Granted, you usually have to step up to full frame to get a 100% viewfinder - but that doesn't have anything to do with the sensor.

...Might want to edit that last part out, just to avoid confusion. Or clarify what you mean if you think it should stay in.

 

[Josh66]

Thanks. Would the size of sensor also affect the fastest shutter speed thats allowed in Program mode. I just bought Panasonic G1 but I am restricted to shutter speeds of 1/10 in indoor settings(without flash). Would buying a camera with APS sensor(T2i) help in such a case?

No.

Switch to Manual mode and you can use any shutter speed between 1/4000th of a second and 60 seconds (neat - usually 30 seconds is the most you can do without Bulb...). Longer with bulb.

Either that or use shutter priority.

 

[Denjel]

This is good

 

[RBS]

cool info :thumbup:

 

[murphymuttoo]

Thanks this helped me understand the ISO Setting :thumbup:

 

[olearris]

This has been a very informative thread. I have learned some new things thanks =]

 

[_james]

thanks for this

 

[tesas]

oh yeah!!!!! thanks so much for the info!!!!!

 

[tesas]

the topics here are so cool!!!! i just love this site!!! ayt?!

 

[Tony9006]

Thanks, very informative!

 

[jands]

This is purely out of curiousity... since a smaller sensor has a crop factor, is detail lost compared to it's full sensor focal length?

For example, let's say two cameras are made by the same company and are exactly identifical, with the exception of the sensor. One is full frame, the other APS-C. Both have the same lens (70-200mm) and we are taking a picture of the same thing, at the same time. The crop body is at it's lowest focal length, 70mm, or actually 112mm because of the crop. And the full frame camera is adjusted to 112mm. Both focal lengths are equal, correct? Will the photo look the same in both cameras, or will one be sharper then the other?

I know... odd question. Hopefully someone will humor me.

 

[DivaKaye09]

Thanks! This is really helpful! :thumbup:

 

[tomhawkins]

This is a great info of yours,Niel. I haven't seen as informative like you posted. Good Luck pal!

 

[Josh66]

This is purely out of curiousity... since a smaller sensor has a crop factor, is detail lost compared to it's full sensor focal length?

For example, let's say two cameras are made by the same company and are exactly identifical, with the exception of the sensor. One is full frame, the other APS-C. Both have the same lens (70-200mm) and we are taking a picture of the same thing, at the same time. The crop body is at it's lowest focal length, 70mm, or actually 112mm because of the crop. And the full frame camera is adjusted to 112mm. Both focal lengths are equal, correct? Will the photo look the same in both cameras, or will one be sharper then the other?

I know... odd question. Hopefully someone will humor me.

The full frame sensor would most likely look better.

Note that the focal length of the lens does not actually change because of the sensor - only the field of view changes.

If you took a picture with the crop sensor, then zoomed in on the full frame camera to get the same field of view you had with the crop sensor - the full frame one will be sharper/higher resolution/more detail/etc... There's just more information there to work with - simple as that.