Open

by damned truths

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

Take the 2-minute tour ×
Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. It's 100% free, no registration required.

I am interested to know how the background blur in this image was done. Is it a petzval lens?

share|improve this question
    
@mattdm I'm not sure how to describe the blur in general terms that others might use in the future -- 'radial' blur? Would someone else use that term? I don't know. If you look at the image feel try to add a description. I was guessing it was a Petzval lens because images taken with that lens seem to have the same same background radial blue with the subject in focus. –  user151841 Jan 28 at 14:12

1 Answer 1

up vote 5 down vote accepted

It could very well have been taken with a vintage petzval lens, however there are many other lenses also capable of creating a similar swirling Bokeh effect as you see in this image. Ultimarely it is unlikely that you would be able to tell for sure which lens was used without asking the photographer.

Here is a list of a few other lenses that are famous for creating the "swirl"

  • Helios 44-2 58mm F2
  • Helios 44-6 58mm F2
  • Helios 44-7 58mm F2
  • Carl Zeiss 1Q Biotar 58mm f2 (10 blades version)
  • Carl Zeiss 1Q Biotar 58mm f2 (17 blades version)
  • Helios Cyclops 85mm F1.5

Recently a kickstarter campaign raised the funds to recreate Petzval lenses with modern mounts: http://microsites.lomography.com/petzval-lens/ Though they are not shipping to the public until June 2014 so I imagine that it is unlikely that the shot you linked was taken with one.

share|improve this answer
    
I think that the early founders of the project have received their Petzval already. At least I spotted one here (look down at the seventh photo) and I have seen a review... here –  Rmano Jan 28 at 23:17
    
Ya, I'm sure several people have shot with it already, however, I merely was commenting that the odds of the image the OP posted being one made by one of those people is probably fairly low. –  rcooper102 Jan 29 at 23:34

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.