File :-(, x, )
Crop vs. Full frame Anonymous
Take a 1.5x crop camera and a full frame camera.

Stick a 200mm lens on the crop and take a picture of a scene. Stick a 300mm on the full frame camera in the exact same position and take a picture of the same scene.

Pixel peeping details aside, will both pictures look the same?
>> fence !!POey2hdozCZ
no. the depth of field will be shallower on the full frame at the same equivalent focal length.
>> Anonymous
At the same exposure and same equivalent focal length, the full frame will have less DOF?
>> fence !!POey2hdozCZ
yeah, exactly. the bigger your media, the shallower your depth of field gets.
>> Anonymous
fencefag is correct.
hence why P&S cameras have piece of shit bokeh

there sensors are so dammed small
>> Anonymous
IT does mean that P&S can get quite nice images for macro or micro photography where DOF is very limited. Punch above their weight.
>> Jeremo !iKGMr61IHM
yeah what fence said.

Which is for instance why you dont really find LF lenses faster than f/5.6 and why they step down to f/64. Because of the huge plates and the difference it makes to dof
>> Anonymous
>>144630
Yeah, because stopping down a lens makes the bokeh suck. (Protip: Most lenses get better bokeh as they're stopped down, because opening up just tends to bring out flaws in all aspects of a lens.)

Lots of them have bad bokeh because the random people who buy them don't care about optical quality, and so they give them bad lenses.
>> Anonymous
>>144689
But people open up their lenses anyways because often they like the aberrations the lens gives to the bokeh at large apertures. Look at say, the Leitz Summar or any Sonnar type lens - they're famous for the "swirly" bokeh they get wide open. I found that this shitty OM mount Tokina 80-200 I have likes to do the same thing. It looks pretty good for portraits and such.
>> Anonymous
I love how when CG people are making something look "realistic", they put crazy hexagonal or speckled or donut-shaped bokeh all over the out of focus parts of the image, and all the CGfags go "zomg it looks just like a real lens"

meanwhile, there are tons of photographers who would kill to have a lens that makes a gaussian circular bokeh, just like the default settings in a render.

Weird.
>> Anonymous
Nikkor 18-135 bokeh looks exactly like photoshop's gaussian blur...

...not really a bad thing, but boring.
>> Anonymous
>>144805
there's your million $$ idea fool