600d aspect ratio

i have 2 600d cameras, i'm trying to change the aspect ratio to 4:3, when I do this the grid lines for this ratio don't come up even in image playback, they only appear when recording. the manual says they should appear. any suggestions??

drewey87 wrote in post #16610408
i have 2 600d cameras, i'm trying to change the aspect ratio to 4:3, when I do this the grid lines for this ratio don't come up even in image playback, they only appear when recording. the manual says they should appear. any suggestions??

A Canon 600D has a single aspect ratio for stills. The camera will always record stills at the native 3x2 aspect ratio of the imaging chip, which was designed to mimic the 3x2 aspect ratio of 35mm film. DSLR's are not like compact digicams that offer selectable still aspect ratios. However, DSLR still files can easily be cropped. For more information, read the instruction manual.

DC Fan wrote in post #16610755
A Canon 600D has a single aspect ratio for stills. The camera will always record stills at the native 3x2 aspect ratio of the imaging chip, which was designed to mimic the 3x2 aspect ratio of 35mm film. DSLR's are not like compact digicams that offer selectable still aspect ratios. However, DSLR still files can easily be cropped. For more information, read the instruction manual.

I beg to differ. The 600D DOES offer aspect ratios, but only when shooting in Live View. The grid lines are for composition only and do not appear in the image file.

The aspect ratio demarcation lines will appear as lines, but only if you are shooting in RAW and only when viewed in DPP. If you are shooting JPEGs the aspect ratio will be applied to the image file.

drewey87 wrote in post #16610408
i have 2 600d cameras, i'm trying to change the aspect ratio to 4:3, when I do this the grid lines for this ratio don't come up even in image playback, they only appear when recording. the manual says they should appear. any suggestions??

Are you shooting RAW?

have tried both RAW and JPEG, the composition lines dont appear either?

drewey87 wrote in post #16612406
have tried both RAW and JPEG, the composition lines dont appear either?

Are you shooting in Live View?

Better point...don't change the aspect ratio. Why would you want to record less image data than your sensor allows? You bought an 18MP camera, why would you want to use less of them? I always take the track of capture at the best quality using all of the pixels, you can always remove data by cropping or resizing later, but you can never recover the data if you don't capture it initially.

Keyan wrote in post #16612886
Better point...don't change the aspect ratio. Why would you want to record less image data than your sensor allows? You bought an 18MP camera, why would you want to use less of them? I always take the track of capture at the best quality using all of the pixels, you can always remove data by cropping or resizing later, but you can never recover the data if you don't capture it initially.

If the shot is captured in RAW then the entire 3:2 frame 18Mp is captured regardless of the aspect ratio setting. The aspect ratio will be denoted by lines appearing on the photo only when viewed in DPP on the "Main Screen"(not the "Edit" or "Image Edit" screens) but the rest of the entire frame is still there and can be recovered. All the other RAW processors will ignore the aspect ratio that is set in camera for RAW captures and show the entire frame.

Keyan wrote in post #16612886
Better point...don't change the aspect ratio. Why would you want to record less image data than your sensor allows? You bought an 18MP camera, why would you want to use less of them? I always take the track of capture at the best quality using all of the pixels, you can always remove data by cropping or resizing later, but you can never recover the data if you don't capture it initially.

The picture is the same "quality" regardless of the aspect ratio, you just cut off a (hopefully) irrelevant part of it. Crop now or crop later is the same. Where one person sees more flexibility by cropping later, another person sees more work. If you need 4:3 jpegs then I see no problem setting the aspect ratio there in camera and saving all the work.

Admittedly, it does make more sense on cameras without an OVF so you can frame more accurately. We set my wife's 4:3 compact to 3:2 (thereby making it a 11MP instead of 12) but then she frames properly and they are ready to print 4x6.