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DPChallenge Forums >> Current Challenge >> Bokeh - Duh
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 01/03/2005 03:14:26 PM · #101
Gee, I have been trying to get that look every since I picked up a digital camera and didn't know it had a name. These were taken without any lenses but look brokeh to me...what do you think?

I must admit I am still a bit confused about the difference between DOF and brokeh.

//www.dpchallenge.com/image.php?IMAGE_ID=133072

//www.dpchallenge.com/image.php?IMAGE_ID=133069

Can't seem to figure out how to get the thumbnails to show up....

Message edited by author 2005-01-03 15:15:22.
 01/03/2005 03:17:57 PM · #102
I love em both,


01/03/2005 03:20:06 PM · #103
wow, Kathryn - if I understand it correctly, then your bow photo is PERFECT for it!

re thumbnail: on your reply post, click the fifth icon, and simply enter the photos ID number, nothing else. I then always check via preview button if I got it right.
Awesome photo!
 01/03/2005 03:26:08 PM · #104
not so bokeh

Need more depth of field . . .
 01/03/2005 03:28:29 PM · #105
what about this ???? is this boken

01/03/2005 03:38:14 PM · #106
Originally posted by agwright:
what about this ???? is this boken

I don't think so. =[

To me, a key element of the concept of bokeh is that you are actually able to discern some qualities about the lens itself from the out-of-focus elements recorded in the photo. The shape of the aperture is one of the factors that can contribute to the "quality" and "feeling" of the bokeh. For example, more circular apertures usually have a smoother looking out-of-focus background, and thus the "better" the bokeh is said to be. Sometimes though, bokeh is almost like an "intangible", where you look at a photo and something about the "smoothness" of the background makes you think "nice bokeh".

I think for this challenge, though, the bokeh will need to be fairly obvious. A simple shallow DOF picture does not have an appropriate background to evoke the characteristics of an obvious bokeh. A photograph with obvious bokeh is typically "spotted", "dappled", "mottled", etc. with repetitive shapes.

Also, I think bokeh will be very hard to simulate well in Photoshop. (Not to mention that it would likely be considered adding a "major element".) Take, for example, this shot I took before our Christmas Eve dinner:



I think you would have a hard time creating the bokeh displayed in that shot with Photoshop. Not saying it would be impossible, just difficult to make look "realistic" and not "fake".

Message edited by author 2005-01-03 16:11:35.
 01/03/2005 03:47:17 PM · #107
Thanks Eddy - I think I'm getting it ....now :-)
 01/03/2005 04:08:56 PM · #108
Bokeh Explained by Ken Rockwell I didn't have time to read the entire post, so some probably already linked this site. In any case it's a good read and a great explaination.
 01/03/2005 04:24:44 PM · #109
Originally posted by EddyG:
Take, for example, this shot I took before our Christmas Eve dinner

Beautiful example Eddy.

The distance from focal point to OOF sources of bokeh seems to be very important. Too far away and you don't get this nice effect. See:

01/03/2005 04:48:03 PM · #110
Originally posted by EddyG:
Take, for example, this shot I took before our Christmas Eve dinner:




what lens did you use for this one? I know you use good glass, so i would have expected a more spherical appearance to it. it IS a great example of obvious bokeh though, you are 100% correct (as i understand it anyway)
 01/03/2005 04:48:09 PM · #111
hmmm, I wonder if should I post this. I just found a nice bokeh on one of my pics from today (I'm doing a PAD on my smugmug site). But it is ever so slightly out of focus (not so visible in this web downsize).
Oh, what the **** I can (hopefully) get another sometime later this week.
Here we go:

So, the question is, have I got it?

EDIT: I hate it, when I spot missing words as I click the Post button

Message edited by author 2005-01-03 16:49:02.
 01/03/2005 04:49:57 PM · #112
You got bokeh, yeah... especially to the right of the duck.

Robt.

Edited to say: Or is it a goose? I think it's a goose... jejeje�

Message edited by author 2005-01-03 16:57:19.
 01/03/2005 04:50:59 PM · #113
@Gauti - absolutely. Great pic too.
 01/03/2005 04:55:05 PM · #114
Gauti- The good news is that you posted an excellent example of bokeh (especially if you crop the left side). The bad news is that you should have entered it.
 01/03/2005 05:04:03 PM · #115
Originally posted by orussell:
Bokeh Explained by Ken Rockwell I didn't have time to read the entire post, so some probably already linked this site. In any case it's a good read and a great explaination.


OK that does help now that I see that this is the same as Circle of Confusion which I studied when I did a photography course a while back. OK, now I'm getting somewhere in my understanding.

THANKS for that link, very helpful...

:o)

Here is the absolutely EXCELLENT article that I found a year or two back - I was looking at different issues related to depth of field and wanted to better understand the concept of Circle of Confusion.

//www.jimbullard.org/CoC.htm

Now that I read it again I realise that Bokeh = Circles of Confusion within the out-of-focus areas of an image.

This definitely helps me, hope others find it useful.

Message edited by author 2005-01-03 17:11:13.
 01/03/2005 05:08:02 PM · #116
Originally posted by scalvert:
Gauti- The good news is that you posted an excellent example of bokeh (especially if you crop the left side). The bad news is that you should have entered it.

yeah, I had that feeling as well. But the face of the goose is out of focus and would look horrible on a print larger than 2x3"

Well, now I can just sit back and say: I know what bokeh is! :)
No, I'll just have to go out and find some more.

Critical factor: have points of light close to the edge of DOF
 01/03/2005 05:22:14 PM · #117
How about this one?

I think what helped here was the trees are abouot 50 feet away.
 01/03/2005 05:38:49 PM · #118
well now that we've posted every single idea possible for the challenge...
 01/03/2005 05:46:23 PM · #119
Originally posted by deapee:
well now that we've posted every single idea possible for the challenge...


Yes the images shared here are the only possible subjects and none can likely be photographed any differently from the way they have been already.

;O)

Come on - when the challenge is a technique based one like this rather than a subject matter one the photos you can take are limitless... certainly sharing 50 or even 500 in a thread like this would not even begin to drain the possibilities.

That said, I probably won't enter as I don't think ANY of my lenses produces this effect to a noticable degree - not that I can see in ANY of the images I have taken ever ever... :o(
 01/03/2005 05:53:08 PM · #120
Jim,

The bokeh in that are barely noticeable, but they are there.

Robt.

01/03/2005 06:00:24 PM · #121
Originally posted by Gauti:

Here we go:

So, the question is, have I got it?


Yes, except your lens doesn't produce very pretty bokeh. See how blurred lights in the background all have bright border, looking almost like blood cells or something. A lens that's nice to bokeh would have rendered them as soft spots of light. It's the same problem with a few of other sample shots posted in this thread.

As far as i know, generally, most zoom lens have less prettier bokeh than most primes. Although, personally, i am not 100% happy with what my 60/2.8 does.
 01/03/2005 06:02:22 PM · #122
My interpretation....



Message edited by author 2005-01-06 17:46:33.
 01/03/2005 10:25:00 PM · #123
Technique based challenges are my favorite. Hope there's lots more to follow. :)
 01/03/2005 10:32:17 PM · #124
Originally posted by emorgan49:
Ask Gordon - He knows everything.


*SNORT*

Coke in the keyboard. Thanks.

M
 01/03/2005 10:59:55 PM · #125

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