Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-09-2009, 03:49 AM   #1
Senior Member
Urmas R.'s Avatar

Join Date: Oct 2008
Location: Germany
Posts: 179
improving bokeh

I have been dedicated now to improve the bokeh in my macro shots. I found a nice gallery at Flickr Flickr: setsunasky's Photostream

Any idea, how she gets these shots? Some of them appear to be done by using lensbaby, whereas others have a really interesting radial blur in the background.

I am also looking for suggestions for macro lenses or short telephoto lenses with interesting bokeh or postprocessing tips.



Cheers!

urmas

03-09-2009, 04:33 AM   #2
Veteran Member
RawheaD's Avatar

Join Date: Dec 2008
Location: MA, USA
Photos: Gallery
Posts: 831
Well part of the answer is simply in the glass she uses. Carl Zeiss Planar, Carl Zeiss Jena Biometar, all legendary lenses with awesome, and sometimes interesting (in the case of Biometar, I'm guessing it's the 80/2.8 but could be 120/2.8) bokeh. She's pretty good taggin her photos with lens info so you should check that.
03-09-2009, 04:48 AM   #3
Veteran Member
RawheaD's Avatar

Join Date: Dec 2008
Location: MA, USA
Photos: Gallery
Posts: 831
Also, what you probably mean is not macro (few of her shots are true macro) but closeup. So, you want lenses that have small minimal focus distance. Since you're interested in bokeh, you want to combine that with bokeh quality, but since the former can be achieved with the use of entension tubes, focus first and foremost on bokeh quality.


I'd recommend any number of great 50-58mm primes for bokeh, roughly in the order of price:

Helios-44M-6 or 7 (but good going back to original 44)
Pentacon 50mm f1.8
Super-Takumar (SMC, whathaveyou) 50mm f1.4
Carl Zeiss Jena Pancolar 50mm f1.8
Voigtländer Color-Ultron 50mm f1.8 (<- my fave)
Carl Zeiss Ultron 50mm f1.8
Carl Zeiss Planar 50mm f1.4

Obviously, lenses like FA 50/1.4, FA 50/1.2, etc. would also be great.

If you want swirls, go for the earlier Helios-44 (44-2, 44-3). Cheap, and very swirly at wide open ;-). If you have the mula, get a Cosina/Tomioka/Revuenon 55/1.2.



Once you've got good fast primes with bokeh quality you like, just attach to an extension tube (the shortest one will suffice) so that you can get to within 15-20 cm of the subject, and there you go.
03-09-2009, 05:24 AM   #4
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Melbourne, Victoria
Photos: Gallery
Posts: 11,694
"Obviously, lenses like FA 50/1.4, FA 50/1.2, etc. would also be great"
- actually they aren't I prefer the 50mm f/2.5 macro.

besides there isn't any FA 50/1.2 - there is only an A and the K version. and I prefer the K version simply because it's a bit sharper in the corners at wide to medium apertures. and aesthetically it looks better ;-)

but I would not recommend a f/1.2 lens for macro work, at any rate. However, I would recommend the Zeiss 100mm f/2 or the Voigtlander 125mm f/2.5 - both lenses focus to 1:1 and offer only what I could describe as superlative bokeh. Both are manual focus, feature rather long focus throws which assist in precision focusing. From my experience longer macro lenses are better than shorter ones because macro lenses have this nasty habit of increasing their field of view at high magnifications the DFA macro is a culprit of this, the FA macro ends up at 82.3mm instead of 100mm at 1:1.

03-09-2009, 06:34 AM   #5
Inactive Account




Join Date: Sep 2007
Location: Calgary, AB
Photos: Gallery
Posts: 942
QuoteOriginally posted by Urmas R. Quote
I have been dedicated now to improve the bokeh in my macro shots. I found a nice gallery at Flickr Flickr: setsunasky's Photostream

Any idea, how she gets these shots? Some of them appear to be done by using lensbaby, whereas others have a really interesting radial blur in the background.

I am also looking for suggestions for macro lenses or short telephoto lenses with interesting bokeh or postprocessing tips.



Cheers!

urmas
The type of shot she is showing with overwhelming, yet articularted bokeh is relative to lens choice, proximity to subject and most importantly, background selection. Most of her shots aren't (as pointed out here) 'macro' (ie 1:1 life scale). Working near the minimum focus distance of fast lenses will be the first step to this type of result, and exploring the world of fast lenses can be a fun yet expensive journey. Starting with older manual lenses and adapters is a great way to see a lot different bokeh for a reasonable price.

There have been topics about this which will give you some more detailed thoughts and samples.

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/31244-bokeh-ma...ggestions.html

My favorite lens for bokeh -
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/18979-voigtlan...-4-review.html

K.
03-09-2009, 07:00 AM   #6
Veteran Member
Nesster's Avatar

Join Date: Oct 2006
Location: NJ USA
Photos: Gallery
Posts: 13,072
Apart from lenses (M42 is your friend here), if you use extension tubes to get closer focus (thus changing the geometries of the oof areas) and/or tele multipliers (thus 'ruining' what perhaps verges on over-correction in the prime lens), you can generate these bokeh effects with greater variety and control.
03-09-2009, 08:15 AM   #7
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Melbourne, Victoria
Photos: Gallery
Posts: 11,694
here's an example...of superb bokeh. though I will admit that I was using a SMC Pentax K 50mm f/1.2 wide open. but for good reason...I was TRYING to make this lens stuff up. superspeed lenses are really bad at minimum focus at their widest apertures, especially with contrasty backgrounds But my 50 f/1.2 amazed me by creating this image...

the first frame is unsharpened, the 100% view has some sharpening applied.


Last edited by Digitalis; 05-08-2009 at 12:32 AM.
03-09-2009, 08:48 AM   #8
Inactive Account




Join Date: Sep 2007
Location: Calgary, AB
Photos: Gallery
Posts: 942
QuoteOriginally posted by Digitalis Quote
here's an example...of superb bokeh. though I will admit that I was using a SMC Pentax K 50mm f/1.2 wide open. but for good reason...I was TRYING to make this lens stuff up.
Very nice shot! Good example for the OP.

QuoteOriginally posted by Digitalis:
...superspeed lenses are really bad at minimum focus at their widest apertures, especially with contrasty backgrounds But my 50 f/1.2 amazed me by creating this image...
Perhaps you'll enjoy to try this technique more in future. It is for results such as these I would disagree with the bolded part of your statement, unless you are looking only for MTF scores. These sorts of shot are the bread and butter of my fast lenses.

K.
03-09-2009, 09:01 AM   #9
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Melbourne, Victoria
Photos: Gallery
Posts: 11,694
I won't make a habit of it. I'll admit to aiming for technical excellence in my images. It has something to do with me being a musician...we are always trying to wring that last 10% out of ourselves.

That image was a lens test really....just an test to try and find a weakness in the Pentax 50mm f/1.2 - there aren't many.

the first image is an example of what in my opinion,is BAD bokeh. the second image is a good example...both images were taken using the Pentax Super Takumar 50mm f/1.4 (c1964) and they were both f/1.4 shots.

Last edited by Digitalis; 05-08-2009 at 12:32 AM.
03-09-2009, 09:04 AM   #10
Veteran Member
Nesster's Avatar

Join Date: Oct 2006
Location: NJ USA
Photos: Gallery
Posts: 13,072



The plain old Takumar 50mm f/1.4 can produce pretty nice bokeh
03-09-2009, 09:09 AM   #11
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Melbourne, Victoria
Photos: Gallery
Posts: 11,694
QuoteOriginally posted by Nesster Quote



The plain old Takumar 50mm f/1.4 can produce pretty nice bokeh
it certainly can, but it also has the capacity for some pretty hideous effects too..the Leica noctilux 50mm f/1.0 is like that too. Sometimes it's bokeh is gorgeous silky smooth...and other times I just cut that negative out and burn it.
03-09-2009, 09:11 AM   #12
Inactive Account




Join Date: Sep 2008
Location: Tri-Cities, British Columbia
Photos: Gallery
Posts: 1,784
I like that sepia shot; nice and dreamy! Further proof that "perfect" focus is best not always being dead-on sharp focus.
03-09-2009, 09:15 AM   #13
Veteran Member




Join Date: Jan 2008
Location: Brooklyn
Photos: Gallery
Posts: 315
Thanks for the flickr link. Great thread.

And great shots, Nesster.
03-09-2009, 10:32 AM   #14
Senior Member
Urmas R.'s Avatar

Join Date: Oct 2008
Location: Germany
Posts: 179
Original Poster
Thanks for the interesting replies and keep them coming!

Great photos as well. As a scientist and long time close-up/macro photographer I have always concentrated on getting the whole subject in focus and use as small apertures as possible. Although the shots might come out technically perfect, they lack something and are more and more boring to do. So I guess I'm now drifting to more artsy style.
03-09-2009, 03:49 PM   #15
Junior Member




Join Date: Jan 2008
Location: EU
Posts: 35
improving bokeh with noise reduction software

This might sound obscene, but how about using noise reduction software? I stumbled across this "hidden" feature when I overprocesses some noisy images as a joke. With Neat Image, for example, you can retain high frequency "noise" (=focus plane) and suppress mid and especially low frequency "noise" (=bad bokeh).

Of course this is no serious method, but for an untrained or trustful eye you can turn a FA43lt/f4.5 pic to a FA31lt/f1.8. At first sight.

Just as a proof of concept some quick and dirty "noise reduction" with some examples from this thread. (I didn't use the "bad bokeh" example as it has no focused area, so this makes no sense as one could as well just use a global blur filter)

one:


two:


three:


You might see that there is also some slight loss of detail. Which cound easily be improved with Photoshop and some layers.

C&C is welcome!
Attached Images
     
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
bokeh, flickr, k-mount, lenses, macro, pentax lens, shots, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
The Economy Is Improving graphicgr8s General Talk 22 05-21-2010 07:26 PM
Bokina versus Bokeh Monster, which bokeh you prefer? Pentaxor Pentax SLR Lens Discussion 3 04-21-2010 01:50 AM
Improving AF with some MF finetuning? danielchtong Pentax DSLR Discussion 2 05-03-2009 01:04 AM
Improving old photos Cloudy Wizzard Digital Processing, Software, and Printing 0 01-06-2008 11:54 AM
Improving Autofocus speed on DS ngkmh Pentax DSLR Discussion 2 09-06-2007 01:07 AM



All times are GMT -7. The time now is 06:57 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top