It seems that the good dialytes are sharper and have more even sharpness than the Tessar at large apertures. I'd say that a 6,8/135mm Syntor would be excellent already at f:12,5 for landscapes, while a Tessar would have to be stopped down to f:18 or f:25.
baachitraka, if the Syntor is in a AGC self-cocking Ibso shutter with air brake, be aware that these shutter often have problems. The Syntor is a quality lens but slow (6,8) to keep the price down, and often put in cheaper shutters like the AGC Ibso. Good value when new, but not much so today. You can find the Syntor in Compur sometimes.
There is a Certo 9x12 camera with a 6,3/13,5cm Dogmar in Compur on German Ebay for €120, but you can negotiate the price. It's the Dogmar I have, and it takes 29mm slip-on filters and shade, easy to find on Ebay.
Scan of a print. I used the Dogmar on a 6,5x9 camera. The darkness and bright lights made a good test for flare and contrast, and while there is some flare it looks good.
Yes, it is a little expensive, but it has the "make offer" option. The camera has been listed on Ebay for years, so maybe the seller would accept to sell it for less. I don't remember what I paid for mine, but I bought it because of its size. It can easily be mounted on a Voigtländer Avus 6,5x9 or with a bayonet on the Bergheil 6,5x9 and can use the same filters and shade as the 4,5/105 Heliar. Also, many slower lenses are better corrected than the faster ones, but I'm not sure how it is with the Dogmar.€120 is quite expensive for a 9x12 camera with a slow f6.8 Dogmar lens, there was a f4.5 Dagmar as well, also it's a 135mm lens. The OP is looking to shoot portraits and a 150mm lens might be better, some cameras came with a choice of 135mm or 150mm.
Many dialytes can be screwed apart so you can clean all glass surfaces. I could do that with the 4,5/135 and 3,5/150 Eurynar, but not with the 5,4/135 version. I have one 5,4 Eurynar with haze inside that can't be cleaned. Just be sure that the lenses face the right way. I took pictures when I cleaned the Eurynars. Here is one of them I still have saved:I presume they can be cleaned...I did not expect Eurynar can go for that high price.
That's a good one, and with the 4,5/135 Eurynar that takes the easy to find 37mm filters/lens hood.
I hadn't seen that one, the lens on this one shows a lot less wear to the shutter and clean glass. You should be able to find a camera in much better condition, at a reasonable price.
Here in the UK I would now buy cameras like these at a Camera Fair, or I know two traders who have market stalls. One at a weekly street market, the other in a covered market hall (open 6 days a week), both sell at very reasonable prices.
I maybe a little harsh when it comes to uncoated Dialytes, and low contrast, the best are definitely very sharp. A good lens hood will help, better still a Compendium style adjustable bellows lens hood will be the most effective.
Personally for portraits I'd go for a Cooke triplet design (or Tessar), I had superb results when using a Rolleicord and Triotar, these days I have 150mm & 210mm Geronars, both Cooke triplet type lenses. I also have some TT&H Cooke triplets on reflex cameras, that I can also use on my two Speed Graphics. Failing that I'd use a Tessar or type lens.
What am I really saying, given a choice I would not use my 203mm f7.7 Ektars for portraits (coated Dialytes) they are very sharp lenses, my next altenative is my 210mm f5.6 Symmar S, but no I'd go for a Congo/Osaka 210mm f6.3 this is the Japanese version of the Commercial Ektar, which Kodak soldtoCongo.
Finally, the simplest design is the Cooke Triplet Geronar. These are all budget lenses.
I think it's a 10x15 camera. Are you looking for a camera to use, or do you already have a LF camera and just want a classic lens?
Without much experiments I just want to decide on a lens, perhaps couple of good lenses. With that may I ask about Meyer Görlitz Ihagee Anastigmat Trioplan for portraits not just faces but also trees and something very close and isolated?
=== this I want to do it later===
I have little knowledge on shutters sizes, instead of pneumatic I can look for a dial or rim type compurs.
I have posted the details on this Forum, but this has some information on Deckel and Gauthier shutters. Luckily they standardised as Gauthier and Zeiss were shareholders of Deckel. By the late 1920s Zeiss had complete control of Deckel and Gauthier and rationalised the Compur shutter sizes, it was costly making so many variations of the Dial Set Compurs, changing the mounting threads. Gauthier shutters also changed to match.
Some years ago I made a list of 9x12 cameras and their lenses from eBay, not one had a 165mm lens, only a few had 150mm lenses, the rest were 135mm.
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