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Two23 wrote:
I read a lot about photography history, and have a nice collection of Petzval lenses, mostly made between 1845 and 1860. A Petzval is a very specific lens design. It is an cemented doublet in front and an air spaced pair in the rear. The Lomo "Petzval" apparently is a five or six element lens, more like a Helios. Lomo does make regular Helios lenses, and the look is similar to a Petzval.
Two23 wrote:
You can count how many elements a lens has by shining a tight beamed flashlight into it, count the refelctions. As an avid historian, lens design is something I pay attention to. I think that Lomo calls their lens a Petzval mainly for marketing, to capture the romance. It's still capable of nice results, of course.
Kent in SD
Hi Kent,
although I don't claim to be a Petzval historian as you do, I have my reservations about your above remarks.
Of course it IMO kind of undermines your credibility that you as a (self declared?) expert only can speak about the Lomo Petzval in terms of 'apparently' and based on your second posting apparently, although your remark kind of confirms it, have not held at all, so have not really had a good, if any look at it, and basically are just spilling a lot of criticism based on a lot of theory and may I say prejudice.
In that regard you kind of resemble a lot of the Nikon DF criticasters who only a few months ago filled the internet with discussion on what an inferior product that was etc. etc., just based on specs and what in their opinion it should have been. Fortunately Nikon has released the D810 since, and that now is the subject of their unfounded scrutiny.
But anyway, rather then go into a discussion with you on the technical details of the Lomo Petzval lens, of which I have no trouble to admit I'm not an expert about, I have sent a mail to the Lomography people (as you know they are a very close knit group and surely willing to reply any questions) on their thoughts over your remarks.
For the moment I have received the below reply from their Communication Department, Tom Bates, and will come back to this when I have received their follow up.
Hi Paul
Firstly, sorry it has taken a couple of days to reply. Thanks tons for your detailed email and offer to help communicate this and correct any misinformation about the lens.
I am now in communication with our product development team to try and get as detailed information as we can give on this.
For now I can already confirm that our Petzval lens is certainly 4 elements in 3 groups just like the original lens was. And I hope to reply to you soon with this more detailed reply about any other incorrect info in the thread or drawings/diagrams we are able to share to help clarify things.
Many thanks again and I hope to be in touch again soon so we can help resolve this. Kind regards Tom...Show more →
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