The nifty fifty bokeh "problems"

I've mentioned the unsatisractory bokeh of the 50mm 1.8 some time ago. I wasn't able to upload pictures up until this point....

This is the lizard pic taken with the 50mm prime:
http://andrew4137.foto​pic.net/p9274070.html

For some reason... the left claw of the lizard is doubled. The plant behind the lizard shows up as circles.

When I take a pic with my 70-200... it's different. It's really smooth:
http://andrew4137.foto​pic.net/p9279897.html

Same with the 18-55 zoom:
http://andrew4137.foto​pic.net/p9274090.html


I have a lot of pics from each lens. This is the general pattern that keeps repeating over and over. For some reason 50/1.8 blurs stuff, but the edges of the blurred objects are sharp.

Anybody noticed that?

Sort of. I too have had occasional problems with bokeh on the 50 mm 1.8. Here is a small sample.

Byte size: ZERO | Content warning: NOT AN IMAGE

I think that's the major reason to go with 1.4 version. That one is MUCH more smoother.

Doc, I think you have an infamous "bad" copy. Although the bokeh on the 50 1.8 is not awesome, its not that bad either.

Atleast its a cheap lens.............not that hard to replace it.

What do you mean by the infamous exactly?

Was there a batch of bad copies circulating around or something similar?

I don't think its a bad copy issue. My 1.8 gives great soft bokeh UNTIL it comes across something of extreme contrast.

look at this typical example - the foreground flowers and all the other out of focus areas are great, except for the "criss cross" white lines and circles in the background which is actually a leaded window. There it is blured but has hard edges.

HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

What do you expect from a $70 lens? L image quality

the 50 1.8 has a 5 blade diaphragm.... it is expected that the bokeh is not as smooth as a lens with a circular diaphragm.

I said infamous because of all the "bad copy" lens complaints on the board lately.......... Including my own.

Evilenglishman, even though the boken is meh on that image, that's really nice, must be the colours...........

You have point there...............yo​u guys should try it with a star shaped cutout over the front of the lens, it looks awsome.

what does meh mean?

you know.............meh*s​hrugs shoulders*

nope, you've got me with that one

evilenglishman wrote:
nope, you've got me with that one

It's ok mate, you've probably never been to canada, eh?

meh... is a sound produced to express the felling of relative indifference towards a certain subject... may be also used to express near average quality of something.

I got a B on the test... meh... it only worth 5% of the total...

My mother in law drowned... meh...

Stuff like that

Post a sample.