NHacker Next
  • new
  • past
  • show
  • ask
  • show
  • jobs
  • submit
Exposure Simulator (andersenimages.com)
ChrisMarshallNY 1 hours ago [-]
That does a fairly good job.

I'm sure that image nerds would poke holes in it, but it seems to work pretty much exactly the way it does IRL.

The noise at high ISO is where it can get specific. Some manufacturers make cameras that actually do really well, at high ISO, and high shutter speed. This seems to reproduce a consumer DSLR.

sneela 45 seconds ago [-]
I recently bought a film camera (Minolta X-700) and I wasted a whole roll because I inverted the aperture (i.e, 2 = sharp, 32 = blur)...

I'm interested to see how the roll turns out - gave it for development the other day, had a good laugh with the employees though.

I now have a mnemonic for it: Blor - a (somewhat) portmanteau of Blur and low. So low aperture = blur.

arghwhat 43 minutes ago [-]
With the disclaimer that I am comparing to the memory of some entry-level cameras, I would still say that it's way too noisy.

Even on old, entry-level APS-C cameras, ISO1600 is normally very usable. What is rendered here at ISO1600 feels more like the "get the picture at any cost" levels of ISO, which on those limited cameras would be something like ISO6400+.

Heck, the original pictures (there is one for each aperture setting) are taken at ISO640 (Canon EOS 5D MarkII at 67mm)!

(Granted, many are too allergic to noise and end up missing a picture instead of just taking the noisy one which is a shame, but that's another story entirely.)

1e1a 43 minutes ago [-]
Video showcasing ISO noise behavior of a few different cameras: https://youtu.be/iiMfAmWbWSg?t=94s
ChrisMarshallNY 38 minutes ago [-]
That's a pretty good demo!

Very limited camera choices, though.

1e1a 4 minutes ago [-]
Yeah, it would be interesting and useful to see this across many more cameras.
1e1a 47 minutes ago [-]
Changing the ISO appears to scale the noise differently from the rest of the image.
Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact
Rendered at 13:09:38 GMT+0000 (Coordinated Universal Time) with Vercel.