Lightroom: Next to crop ratio, crop factor

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Hi,

I think it would be useful and easy to implement to be able to choose a specific crop ratio, like 1.4, 1.5 or 2 in order to 'simulate' TC, crop sensors, m4/3, ...
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Antoine Hlmn

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Posted 6 months ago

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Just Shot Me

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IMHO this is useless. A Cropped sensor, APS-C/Whatever/ is still Full Frame for that sensor. It is only cropped in Comparison To a standard 35mm sensor and or a piece of film. The ratio is still the ratio, 3/2, 4/3, 16/9, Whatever.

What if I always used a 2.25" square camera and then switched to digital with a 3/2 sensor. What is the ratio of that change and why would I want to see it.

The crop ratios you are talking about is to compare lens mm, coverage of the lens for comparison to what you might use on a standard 35mm sensor/film.

It really has nothing to do with you cropping an image after you take the picture.
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Antoine Hlmn

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1)
It was just an example, I think it'd be usefull to be able to adjust the (let's say) "zoom" (named crop factor, as it would be in the crop tool, next to the crop ratios) to x1, x2, x5 or whatever. Many software offer that. Same as in the left pane, you've fit, 100%, 1:1 and other ratios. You could have exatly the same for the crop function.

2)
A Cropped sensor, APS-C/Whatever/ is still Full Frame for that sensor. It is only cropped in Comparison To a standard 35mm sensor and or a piece of film. The ratio is still the ratio, 3/2, 4/3, 16/9, Whatever.
A cropped sensor, [...] is still fill frame for that sensor ? What ?
The ratio is still the ratio, 3/2, 4/3, 16/9, Whatever. --> sure, I'm not talking about ratio but factor. Two different things.

The crop ratios you are talking about is to compare lens mm, coverage of the lens for comparison to what you might use on a standard 35mm sensor/film.
It really has nothing to do with you cropping an image after you take the picture.
Sure it has. If I have a full frame sensor and "crop" it by 1.5x, it behaves as an APS-C sensor, whether done in body or in post.
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Just Shot Me

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I had typed out a reply but then thought better. No point.
Sure I hope you get what you ask for. 
Happy new year.