How does a Nikon DC portrait lens compare with a Petzval portrait lens, such as the ones Lomography are producing?
That is, do they produce similar bokeh and similar vignettes and center sharpness? What is similar and different between them? Or, is there really no comparison?
If there is no real direct comparison, what are the advantages / disadvantages of one verses the other? If both were available, what criteria would you use to choose one over the other?
Thanks in advance.
JK
Comments
Their is very little data on the new Lomography Petzval. We will have to wait and see what it is capable of once there are more of them in the market. Or those that have made their contribution via Kickstarter. One thing for sure...it will not be in my bad. The look of it is not to my liking...regardless of its optical performance.
Not sure what to think on the Lomography Petzval since it is more of a niche within a niche kinda lens. It would be cool to see some data on it from people messing one in the field.
Another nice property of the lens is the bokeh circles are not circular but are oval stretched out and seem to form concentric circles around the central region. the effect is very subtle and draws attention to the center of the image similar to what leading lines do. Your eyes cant escape from the center a bit like a moth and flame.
Being a photographer is a lot like being a Christian: Some people look at you funny but do not see the amazing beauty all around them - heartyfisher.
Large image:
http://www.flickr.com/photos/fantinesfotos/9552279850/sizes/o/
And, this lens has not been fine tuned. It may actually have a bit of front focus...
How does it compare? Not even in the same realm of a Nikkor DC lens. Very different goals - very, very different Bokeh. If you are looking for technically repeatable results, and a lens that will be one of your main lenses, there is no question you go a AF Nikkor (105,135,85). Resolution and MTF tests of similar designs are only maybe 1/2 as good as a BAD Nikkor lens. But people want them because of this, and how the "bad-ness" creates a "Look."
If you have money to burn and want to play and pray that you can get a shot - then you go this route. They are Manual Focus and you will miss a ton of shots. Enormous care needs to be given to the background to get the look. These are not the type of lenses that you can slap on and get a great shot, they are lenses that you set up like you are using a large format camera.
It's all about character:
Notice how the bokeh has a swirl characteristic to it. That is what they are trying to achieve. Sharpness will not even be in the same league (much lower) than the Nikkor.
Petzval from Lomo's micro site:
Link
Helios 40-2 N: (Note the similar bokeh) From Flickr
I may just buy each - I love the look.
I've used both the 105 and the 135 and they're awesome. The thing about using more exotic lenses like a Petzval is that you are working at the bleeding edge of imagemaking and you have to be much more precise with exposure, focus and tripod stability. You basically have much less room for error because the image quality depends on the tension between the in-focus and out of focus parts of the picture. If your focus is off by even a little bit or your camera has any shake the picture will look like a mistake.