Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,556   Posts: 1,545,035   Online: 877

Petzval Lens Enthusiasts

  1. Andrew Moxom
    Someone ought to look at this sucker... I am not sure, but that maybe the earlier version of 'The Eddie ' Lens.... It's a 4" Super Cinephor lens @ F1.8!!! http://cgi.ebay.com/BAUSCH-LOMB-SUPE...ayphotohosting Not sure if this is before or after the Cinephor II lens. I now have 3 of the Cinephor II lenses. One in 5" 5.75", and 7" I do not need another one. That said, the 5" does not cover 4x5 fully and you are better off cropping square to better use the image circle of the lens. This 4" version maybe very interesting swirly wise, but you may have to take a risk with it. No pics of the lenses.. Maybe ask seller a question or two? He has a couple of other B&L projector lenses. One of them 5" which should be good for 4x5..... Again YMMV ask questions.
  2. Stephanie Brim
    Stephanie Brim
    Go ahead with that one, Colin. Oh, and who took the big pot? Just so I know who to ask.
  3. gandolfi
    gandolfi
    well - somebody called Mollypix...
    and for 225$...(32$ a piece....)

    which makes the previously mentioned expensive lens even less understandable....:rolleyes:
  4. gandolfi
    gandolfi
    BARRY: regarding the Kranz lens.
    I just mesured the focal length to approx 450mm. The aperture (waterhouse slot) isn't that impressive..
    about F5.6

    I don't know the image circle, but fitting it on my big Gandolfi, I can find out..
  5. gandolfi
    gandolfi
    Barry again.
    regarding cameras for this lens..

    I have a couple of studio cameras, but the front plate size is of importance here..
    the retaining ring is 7" wide (!!) (175mm..) and the threaded hole about 5.3" (135mm)wide...

    Apart from my two biggest cameras (the Gandolfi 12x16 and my unnamed 16x20) the size (and weight) of the lens makes it impossible to fit any of my cameras..

    (And as you know, it is "silly" to tir the lens on those two cameras, as the negative sizes here are far too big.. (it LOOKS GREAT on the 16x20 camera though..))
  6. Shangheye
    Shangheye
    Does anybody here know if a petzval design lens would fit a modern Toyo 45CF lens board? If not how would I need to modify it? What sutter would you recommend or do they come in a variety of shutters and I just need to work out how to get it on the board? I have a Toyo 45CF by the way and am also interested in recommendations about what focal length, or recommended brands designs etc that would suit the 4x5 format. I would prefer someting loger than 210mm if possible, but no longer than 300mm (no belows extension). Thankyou. Kal
  7. Andrew Moxom
    Andrew Moxom
    Kal, generally anything from 4" to 7" is normally good to go for 4x5. The shorter focal lengths will have limited coverage (some strive for that) and will give more pronounced edge swirls and vignetting. Again, it all depends on the width of the lens too. Regular shutters can be fitted, but can cost quite a bit of money to have someone like Grimes mount it to the back of a lens. I have heard of some folks cutting the lens tube in half at the nodal point having the barrel turned down and threaded, and having a shutter installed. Again VERY expensive. Also, most use these lenses wide open for the maximum effect. For lens boards, I make my own (linhof style) out of fancy woods, and make the lens a friction fit. There are some photos of how I did this in the list of photos on the right hand side of this page. I also use a Packard Shutter on the front of my lenses to give me some control and to allow use of filters to slow exposure down even further. For your requirements a 210 to 300mm lens equivalent in inches is 8.5" to 12" For petzvals, these are quite large and likely NOT fit on your lensboards without much creativity! 7" petzvals may cover up to 5x7 and the effect on 4x5 is limited.... So I would stay close to the smaller focal lengths. You can always crop?? I do crop to square with my 5" petzval as the image circle vignettes heavily on 4x5. As for brands, expect to pay more for names like Voigtlander, Darlot, Dallmeyer, Bausch & Lomb. That said, I can recommend the Darlot and B&L as they are what I use. Magic Lantern lenses are also good bets from any of these manufacturers as they are the same designs without provision for waterhouse stops.
  8. Shangheye
    Shangheye
    Thanks Andrew. Exactly how much vignetting are we talking about with the shorter focal lenths? I certainly like the lens you are using at the moment, and something like that would be ideal. I also intend to be using glass plate slightly smaller than the 4x5 holder (I will cut the glass probably to 3x4) so I will effectively get the crop you describe. My only concern is if i will find someone in belgium/europe who can do the mod to fit the shutter...whow does it work with the packard shutter, do you recommend it? Is it easily fitted? Rgds, Kal
  9. Andrew Moxom
    Andrew Moxom
    Kal, the Packard shutter company is still going !! www.packardshutter.com take a look at them, and then also see my pictures on how I fitted a packard for my set up. It's really quite easy. They work very well, and give much more control than a hat or darkslide used as a shutter! All you need is velcro!!! So far it is very sturdy and can be fitted onto ALL of the petzvals I have. It also shows how I adapted a Cokin P filter system for the front.
  10. Shangheye
    Shangheye
    Thanks Andrew, I will definitely check them out. Rgds, Kal
  11. Colin Corneau
    Colin Corneau
    Andrew, I checked out that Cinephor lens -- sounded interesting but those scratches sure give me pause.
  12. Barry S
    Barry S
    I think 4" may be a little short for 4x5". I have a 4 3/4" projection petzval on my 4x5 and it vignettes about the same as Andrew's 5" Cinephor II. I wouldn't go with a 4" unless you want a circular image on the film. A 4" lens is probably going to give a slightly bigger than a 3" image circle. Also, we don't know if the Super Cinephor design is a petzval. It may be, but many later projection lenses are more advanced designs. You may get some funky results with a more modern projection lens, but they won't necessarily have the characteristic petzval signature. In any case I might bid low if you want to experiment, but don't all of you bid against each other for what might be a marginal lens. I try to get a confirmation on the design, focal length, and coverage if possible--before buying.
  13. Barry S
    Barry S
    I posted a triptych from my Memory Series. It's a series that includes many petzval images and this triptych is currently hanging in a group show in DC. Unfortunately it gets resized to a very small image here that dilutes the effect of a 17" X 34" print.

    Edit: Better version in the gallery at http://www.apug.org/gallery/showphot...=39660&limit=2

    I don't understand why the albums only accept 600 pixel wide images vs. 850 pixels wide for the gallery. Also, why can't we pick images from our personal gallery to add to the group?
  14. Colin Corneau
    Colin Corneau
    That triptych is really stunning, Barry. It caught my eye immediately and was a good lesson for this newbie about what can be done with these processes.
  15. ishutteratthethought
    ishutteratthethought
    Hello Folks,
    What would be considered a good price for a 5.5 inch Darlot Paris lens? I believe it is a projection lens without the slot. Glass is clean and all 3 elements and flange are intact. It is approximately 3 inches in diameter, glass is approx 2.75 in dia. I understand that the make up of the projection lens is the same as the receiving lens but without the slot.
    The seller tells me the barrel is inscribed "Darlot Paris".
    Thoughts appreciated.
    -Steve
  16. Andrew Moxom
    Andrew Moxom
    Steve, that should be a good lens on 4x5. The focal lenth is right in the ball park for that format too to give good, but limited coverage so you should get some vignetting and swirlyness. That said, Are you sure it is 3" diameter across the front element? That is quite a large/wide lens. Even though it is a magic lantern lens, it is the same overall design as a 'taking' lens and you will be shooting it wide open anyway! Price wise, if it's in great shape, expect to pay a fair amount for it. Unless you are getting a deal? a similar one went for over $300 on Feebay this week! If the owner knows the value, then be prepared for some not insignificant cost.
  17. ishutteratthethought
    ishutteratthethought
    Thanks Andrew, I already bought it for $125.00, couldn't pass up the opportunity. The dimensions are what the fella gave me when I called him and the pic looked good. The seller is from Maryland, appeared to be a legitimate seller & I am a gambler. I was lucky with a google search " darlot craigslist", he ws trying to sell it for $425.00 earlier but no bites, kept dropping the price and I stumbled along at the 125 dollar price. He had it lying around for 25 years until he decided to sell it.
    I am excited to get this one. I am afraid I have this so called lens disease which I hope by getting this one I will put it in to submission for a while.
    Steve
  18. Stephanie Brim
    Stephanie Brim
    Nice find! Hope you get some shots with it soon.
  19. Akki14
    Akki14
    I'm fairly sure I'm going mad. I tried the petzval I bought from Andrew tonight and I tried focusing and I totally somehow failed to focus? In one shot I have the background in focus a bit instead of my husband (arugh) and in the other I could *swear* I had the light glinting off of a glass in perfect focus.
    http://www.flickr.com/photos/fishies...ok/3080297175/ Husband picture with the background in focus)
    http://www.flickr.com/photos/fishies...ok/3081136502/ picture with the glass that SHOULD be in focus but I'm not sure, maybe it is in focus and it has "glow"?
    Both pictures were about 2seconds exposures on Fomapan 200, developed in diafine because I couldn't be arsed to do anything else today I used my speed graphic's T mode which I wasn't sure if it'd work or not because it's a bit slow to close and doesn't look like it will close all the way but it does.
    Oh yeah and I used a tripod so that should rule out some kind of shaking.
  20. Andrew Moxom
    Andrew Moxom
    Heather that first one would be good, but like you say the focus is on the background.... Remember these lenses have REAAAAAALLY limited DOF and it has to be spot on.... I've had some misses too when doing portraits. The eyes were infocus on the glass, I take the pic, and only the ears are in focus.. My subject moved only a few centimeters and it is off.. That tells me you must have moved (unlikely on a tripod) or like you say, the focus is off. Ground glass should be shiny side out always:-) Also, the petzval signature is sharp in the center and fall off at the edges. Focus does shift at the edges due to the Coma/aberration taking place. TRy to have your focal point closer to the center area-ish.
Results 81 to 100 of 197


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin