df cardwell
Subscriber
Groovy picture Ara !
.
.
Trade names have no implications for design.avandesande said:How about the new voigtlander lenses? are these designs true to their names or just fancy planars?
FYI, 50/4.5 and 75/4.5 Enlarging Ektars are 5/3 heliar types. Ektar is a prime example of a trade name that's been applied to a wide range of designs. And there have been many, many triplet type enlarging lenses.Ole said:Most enlarger lenses are either 4-element Tessar types, or 6-element Plasmats. There are a few rare 4-element dialytes too, but not many. The most "exotic" one is probably the Voigtländer WZ (2 elements soft-focus enlarger lens), but that is old.
Some condensers are aspheric - mostly high-end 35mm enlargers. The rest are one- or two-element spherical.
It's an interesting thought, that you have to get very new or very old to get something unusual. I think it might be correct, too. The largest variation in design and quality seems to have been the "Anastigmat explosion" in the beginning of the 20th century, when every lens maker had at least one "unique" flavor of anastigmat!
Fair question re the Enlarging Ektars. I've never learned how to differentiate between the various dynar-like Voigtlaender lenses. But if you want, I can give the number of the US patent that covers Kodak's heliar types.Ole said:Were they Heliar-heliar types, Dynar-heliar types or Oxyn-heliar types?
Most Heliars are Dynars; most lenses sold as Dynar were Tele-Dynars, and most of Voigtländers enlarger and repro lenses were Oxyns...
The new Cosina Voigtländer lens series treat the names as what they've always been: Names only.
Dan Fromm said:But if you want, I can give the number of the US patent that covers Kodak's heliar types.
Ara Ghajanian said:I'd have to say that the subject matter and lighting are just as important in giving something a vintage look. I took the shot below about a month ago. Most people who I showed it to thought that it was shot in the 50's.
Richard Kelham said:I'd guess it's the hair style more than anything else...
df, that's an interesting point. For curiosity, have you ever shot an f/6.3 Commercial Ektar against the equivalent pre-war (I, not II) CZJ or B&L Tessar IIb against the equivalent post-war (II, not I) coated CZJ f/6.3 Tessar? I mean, I know that the Commercial Ektars are highly respected, am not aware of aged and modern Zeiss equivalents' reputations, except that the Vade Mecum says that early f/6.3s are the connoisseur's choice. I know that the Yamazaki CE equivalents aren't beloved, also that although the one I have is in poor condition -- horrible cleaning marks -- it still is usable.df cardwell said:Kodak did to the heliar what they did to the tessar: treat the basic design as a starting point, then perfected it.
.
Ed_Davor said:Thought this has turned to be an interesting thread, I get the feeling that most posters who tried responding to me (thank you by the way) didn't even read my first post.
I didn't say I am looking to emulate some look I've seen somewhere, nor did I say I'm trying to emulate anything.
What I was asking is someone to describe to me that look that vintage lenses can give. I don't know what is it because I've never shot with any lens older than 70's.
Thanks for the advices, but I'm not trying to emulate anything, I was just asking what is all that that people are often speaking when saying such things about old uncoated lenses.
"Go for something uncoated and shoot with a bright light source and the resulting coma gives a wonderful glow."
Ed, coma is an off-axis aberration that is affected by aperture -- stopping down reduces it. The only post-WWII lenses that I know for sure are said to have severe coma problems are tessar-type Wollensak Raptars; this according to Richard Knoppow, who insists that there was a design problem.Ed_Davor said:tony, this sounds interesting, whas do you mean by "coma" and "glow", could you be more technical?, I think this is the "definition" I was looking for, I think I've seen what you mean..
Dan Fromm said:FYI, 50/4.5 and 75/4.5 Enlarging Ektars are 5/3 heliar types. Ektar is a prime example of a trade name that's been applied to a wide range of designs. And there have been many, many triplet type enlarging lenses.
Don't insult Kodachrome.
Color fringing is a symptom of chromatic aberration, Tony.tony lockerbie said:Hi Ed, I'm not a technical sort of guy I just call 'em as I see 'em. The coma that I speak of may not be the correct term and someone will probably corect me. Astigmatism may what I mean, or maybe a combination of both. I will give you my experience with a couple of old lenses, the first being a Voigtlander Nokton from the early fifties. When shooting colour with this lens you can see a blue fringe around the image which I presume is astigmatism(anybody?). When shooting on B&W with this lens the result is a well defined image but with a slight glow from the unfocussed blue light. I get this result also from old and fast leica lenses (Summar, Summitar) and an uncoated Tessar on my Super Ikonta. I have an old uncoated sonnar from a Contax that doesn't have this effect however, so it's probably a case of suck it and see.
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links. To read our full affiliate disclosure statement please click Here. |
PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY: ![]() |