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by semi-extrinsic 1476 days ago
Of course the better lens in this case has really narrow depth of field, so you get a very smooth background in basically all situations. This helps a lot.

I can't help but wonder how these would look if the GameBoy Camera had a better dithering algorithm...
1 comments
aspyct 1476 days ago
Not sure how narrow the depth of field would be with the 1.4x extender and the tiny little sensors though.
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semi-extrinsic 1476 days ago
It's going to be super narrow still.

I tried punching this in on an online DoF calculator which has 1/4" sensors, but it only goes to 1200mm@F/45[gameboy], which is the equivalent of the 70mm@F/4[fullframe] end of this lens. Even then, focusing at something 40 ft away you have a 0.2 ft depth of field, so a background 10 ft behind your subject will be pure blur.

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aspyct 1475 days ago
That doesn't seem right.

Out of focus blur is a function of focal length and aperture. The sensor size only dictates the crop.

In this case, the lens widest setting with a 1.4 extender is 98mm @ f/4. On a full frame sensor, something 10ft behind a in-focus 40ft away thing would still be very recognisable. Since a crop sensor is just a crop, I don't think it would have a different effect.

The 1200mm focal length equivalent only applies to the fov radius, not to the blurriness.

What's your definition of "pure blur" then?

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