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Ernst Abbe from Zeiss were the first who described that it is possible to realise an astigmatism corrected lens with only three lens elements but I guess it were Mr. Lee from the Cooke company who...

I have a 300mm and a 240mm Eurygon lens. Yes, this lenses are three element types but not like the Cooke Triplet.
The Cooke lens, the Meyer Trioplan, the Zeiss Triotar, Rodenstock Trinar were lenses...

What is the sense to make a lens like this? Why are the maker gives the rotating star a shiny golden colour? How stupid is this.
Sorry but I don´t take it seriously.
This is another try to use a...

Emil Suter "Stella" 160mm f/5 @f/11 with yellow filter 3x
Fuji UM-MA, 9x12cm sheet film, Kodak HC 110, 1+39

https://live.staticflickr.com/65535/53571018577_9ab4d1c52d_h.jpg

That´s great, thank you for sharing

Here´s a sample I made with my 550mm (22") Busch Bistelar @f/11
Fujifilm UM-MA, Wehner developer (Jobo Alpha), sheet film 18x24cm (8x10"=20x25cm)
...

In Italy a Dallmeyer Dallon 20" f/5.6 is for sell.
The lens extension, back lens from screen is only 10" at oo.
It covers 5x7" at oo and it should work for portrait distance in 8x10"
It costs 190...

Dallmeyer made longer tele photo lenses, some named "Adon"
Some US American lensmakers produce tele lenses as well, like Wollensak.

This lenses are moderate in price because the most...

Thank you for your kind comment.

I like the Plasmat lenses and I have some different foci in use.

I have to correct my description, I used the 173mm Satz Plasmat and not the 153mm.

Fuji UM-MA, Kodak HC 110, 1+39
Sheet film, 9x12cm
Hugo Meyer Satz Plasmat 153mm f/4.5 @f8

https://live.staticflickr.com/65535/53551695709_e0aa194b1b_b.jpg

And a second version of it.
Same data than before.

https://live.staticflickr.com/65535/53231760578_d490d7d608_b.jpg

I used Tetenal Work grad.3 paper. Expired in the 1990th.
18x24cm, developed in Tetenal Eukobrom
Goerz Dogmar 360mm f/5.5 @f5.5
Partial solarized with UV light.
Sinar Norma 8x10"
...

Very good, I like soft focus images.
The structure of the dresser looks very clear and sharp.
I never used a Vireto lens, is is typical for this lenses?

With the Imagon I getting more or less...

You mean the Visby lenses: https://en.wikipedia.org/wiki/Visby_lenses

I know them, very impressive pieces, nearly 1000 years old.
Some of this lenses having an aspherical shape. Unbelievable....

A friend of mine made a photo of me with the 550mm Bistelar @f/7
Wet plate in 8x10".
Not in the kind you want to realise but we want to see how it works and how the bokeh is.
...

I have an old pre war Emil Busch Bistelar 550mm f/7
That´s a perfect lens for this job.
Tele photo lenses are a good choice because of its short bellows extension.
Maybe the Nikon tele lenses are...

I made some waterhouse stops for a Petzval lens and this is one of the test samples I made with it.
It is an unnamed lens, no data engraved but I measure it as a 200mm lens with f/3.5
I used f/16...

It sounds like a wide angle rectilinear design. This lenses were very slow and not realy usable at full open aperture.
On a small part in the middle of the image shows a kind of sharpness.
Stopped...

Not Japanese and not USA made but a perfect choice for 8x10" is the Schneider Angulon 165mm f/6.8
It has a large angle of view and is realy sharp. I used one of this lenses for years and I were...

This is a great shot, I really like it. I guess it tells a story for you and for me as well but mine is different.

Do you miss Jerry G.?

Emil Busch Quarzlinse (single lens element) 200mm f/4.5 @f/9 (star shape aperture)
Fuji UM-MA, sheet film 9x12cm, Kodak HC 110, 1+39
Negativ scan with Epson V700
...

It is realy one of the best 4x5 enlargers.
I spend mine a Splitgrate three years ago.
I can use it with or without glass holders.
The different negative frames and glasses are still available....

I contacted the seller and is is a prototype lens or only a handful of it were made.
It seems that when the 11/800mm is screwed in the front and the 600mm in the rear you have the 800mm with f/11...

Could be a story by E.A. Poe, but it isn't.

Fuji UM-MA, 9x12cm, Kodak HC 110, 1+39
Emil Busch Quarzlinse 20cm, f/9.0 (star shape aperture)
You find something about the lens here:...

My information is that Zeiss made the Quartz and Sodium Chloride lenses in house.
Schott delivered the standard optical glasses but maybe my infos are not correct.

In 1989 Zeiss Jena were able to...

Oh sorry, you are right. The name of the company is Hanovia.
Steinheil sold a few quartz glass lenses but I´am not sure that they were the maker of it.
The same with this Busch lens. Maybe all of...

My favorites were the Schneider Angulon 165mm f/6.8 and Symmar 300mm f/5.6 and a 600mm Repro Claron.
All are very good lenses and with low or moderate prices.

I sold a 300mm Symmar, one of the...

I got this interesting lens a few month ago for small money from an old photograper.

It is an Emil Busch 20cm (8") Quarzlinse (quartz glass lens)
It has two star shape apertures with the old...

I already have the lens now and for me it is fast enough. I want to use it with my 8x10" Sinar an the Sinar/Copal shutter.
The other lenses are to large in diameter for the shutter, it has only Ø...

The lens has around 360mm focus length and a lens diameter of 86mm. Gives a speed of f/4.2

I want to check it further tomorrow.

Sorry for asking, has someone the cams for the 210 and 270mm lenses available?
Now I have the both 270mm lenses ready mounted on the boards but the cam is missing.
Also two boards will be nice as...

Thank you for the information.
The seller has to send some further information about the size of the lens.
The serial # is 146xx

Question from my side. I get an offer for a Derogy Nr.6 brass lens.
The seller knows not really much about it and can´t give me further information.
Nr. 6 means it is for larger sizes >8x10" but...

Periscope lens 180mm f/8 @f/8
One cell with 288mm and one with 500mm.
1" quartz glass from Thor Labs
Yellowgreen filter -1EV to avoid the focus shift.
Fuji UM-MA, 9x12cm sheet film, Kodak HC110,...

Excellent work Steve. I like it.

I try to explain it, not so easy.
First we have to talk about the kind of soft focus.
The US American favorite of soft focus is in the tradition of the pictoralism, I don´t value it, it is always...

I used a DIY made miniscus lens, 270mm and used f/8

Michael Neumuller explained in his book " Praxis der Weichzeichnung" one of the best books about soft focus lenses, why round apertures are not...

Fuji UM-MA, 9x12cm, Kodak HC 110, 1+39
Nicola Perscheid Objektiv, 190mm f/4.0 @f/11; yellow/green filter -1EV

https://live.staticflickr.com/65535/53407194057_28ee282731_h.jpg

Excellent work, thanks for sharing.

In this case I wanted to see how the lens performs with different aperture.
But you are right, when you want to use this film at its best a yellow green filter is a perfect choice.
I´am using a...