amolitor
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- May 18, 2012
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This pops up from time to time, so I thought I'd take a few moments to pull together some remarks.
The Brenizer Method is, essentially, just using a little sensor to re-create a bigger one. You nail the lens down, and then wave the sensor around behind it taking multiple exposures, until you've patched together a bigger-sensor look. Now, you can't actually fix the lens in place, but you do your best.
So, general remarks:
- DO NOT ALTER FOCUS
- DO NOT ALTER EXPOSURE (meter the scene, then go manual to "lock" exposure)
Just make your multiple exposures behind your "as fixed as possible" lens.
With a crop sensor:
- DO NOT use an "equivalent length" lens. If you want that 85/1.8 look, you need a 85/1.8. The 50/1.4 is going to look like a 50mm lens on a medium format camera, which is also a thing, but not the thing you want.
- DO take twice as many shots. Your sensor has half the area of the full frame ones. You need twice as many exposures to make your "virtual sensor" be the same size.
The Brenizer Method is, essentially, just using a little sensor to re-create a bigger one. You nail the lens down, and then wave the sensor around behind it taking multiple exposures, until you've patched together a bigger-sensor look. Now, you can't actually fix the lens in place, but you do your best.
So, general remarks:
- DO NOT ALTER FOCUS
- DO NOT ALTER EXPOSURE (meter the scene, then go manual to "lock" exposure)
Just make your multiple exposures behind your "as fixed as possible" lens.
With a crop sensor:
- DO NOT use an "equivalent length" lens. If you want that 85/1.8 look, you need a 85/1.8. The 50/1.4 is going to look like a 50mm lens on a medium format camera, which is also a thing, but not the thing you want.
- DO take twice as many shots. Your sensor has half the area of the full frame ones. You need twice as many exposures to make your "virtual sensor" be the same size.