Are Full Frame SLRs Obsolete?

Started Jan 4, 2014 | Discussions thread
Keith Z Leonard Veteran Member • Posts: 6,056
Re: Crop sensors are certainly obsolete

TheMeister wrote:

In the world of photography we refere to a sensor that is smaller than the standard 36x26mm as a crop sensor. Using the circular image directly from the lense is and never has been a standard. Lensmakers dont think of people using the circular image when they design a lens.

In the world of 35mm digital photography you are correct, but those are smaller sensors than the phase 1 cameras, for example, it's all relative.

Apc-s is not "slightly" smaller then a FF sensor. Its significantly smaller.
Tiny sensors weirdly turn wider angled lenses into portrait lenses.
The smaller the sensor - the more the image distortion and loss of light.

It is significantly smaller, but it is far from the "tiny" sensors of point and shoot cameras.  There's nothing "weird" about the change in field of view, it's just a crop, but it doesn't change perspective, so wider angle lenses will still not be ideal for portraits.

In terms of distortion, it doesn't increase it, it decreases lens distortion from the same lens if shooting equivalent images, because you are getting only the center portion of the projected image and distortion tends to be worse towards the image.  You are gathering less total photons though.

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