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View Full Version : Plasticca info anyone?



Craig Tuffin
24-Nov-2011, 05:29
I've just received my 1928 28cm Plasticca in incredible condition and just looked through it and can't believe its coverage...I think it'll cover 11x14. What an incredibly wide angle glowing meniscus...I'm going to have fun with this one :p

I've got an Eidoscope as well but the specular highlights glow so unbelievably differently with the meniscus.

The questions I've got before I do some tests are:

1) What was the yellow filter designed for...to improve contrast? Can you shoot without it and what would the difference be?

2) How will it behave when using with a medium like wet plate...particularly when you consider wet plate is tuned toward the blue and UV end of the spectrum while Reds are rendered as blacks?

I'd be very interested hearing some experiences.

Emil Schildt
24-Nov-2011, 06:30
Congrats Craig.

I have one excately like it.

I can't help you with the wet plate question as I don't do that my self.

The coverage seems very big, but be careful! I actually think this was made for half plate or smaller size.
in 13x18cm (5x7) it starte to go really crazy, and in 8x10 most of the image will be a total blur....

which of course can be interesting/fun to have...

here's a couple of images, made with Plasticca 28cm.

http://www.emilschildt.com/OLD%20LENS%20images01.htm

formats from 9x12cm to 18x24cm...

(the yellow filter is to highten contrast)

I am curious to see what you can do with this lens.!!

Show us as soon as possible....


I've just received my 1928 28cm Plasticca in incredible condition and just looked through it and can't believe its coverage...I think it'll cover 11x14. What an incredibly wide angle glowing meniscus...I'm going to have fun with this one :p

I've got an Eidoscope as well but the specular highlights glow so unbelievably differently with the meniscus.

The questions I've got before I do some tests is:

1) What was the yellow filter designed for...to improve contrast? Can you shoot without it and what would the difference be?

2) How will it behave when using with a medium like wet plate...particularly when you consider wet plate is tuned toward the blue and UV end of the spectrum while Reds are rendered as blacks?

I'd be very interested hearing some experiences.

eddie
24-Nov-2011, 06:51
i used mine very successfully on wet plate.

a 280mm on 11x14? hhhhhmmmm?

mine is 450mm! :p

Craig Tuffin
24-Nov-2011, 07:06
Thanks Emil!

Yeah it is significantly stretched and distorted at 11x14 but it doesn't darken (I should have been more specific) so experimenting on 8x10 will be fun :p

I figured the yellow filter would be for contrast. Pretty useless with wet plate when the collodion age determines contrast more than anything else.

I'll post some scans soon.

Eddie....yeah, I wanted a longer FL but this one came up for a song with its original cap and box in near mint condition so I just couldn't say no.

You shot yours with and without the filter? Show me some plates!

Craig Tuffin
24-Nov-2011, 07:16
http://www.emilschildt.com/OLD%20LENS%20images01.htm

Very nice work as usual Emil!!!

I can see the pictoralist in me coming out with this lens. I'll pretend to be a poor copy of Julia Margaret Cameron for a day :rolleyes:

Steven Tribe
24-Nov-2011, 09:01
Note that the extra yellow filter was given up in the later 20's and replaced with a permanent yellow/beige dye in the balsam of the "achromat". Contrary to popular belief, the lens works with other than nudes. The recommended coverages are given in the catalogue at Cameraeccentric.

Emil Schildt
24-Nov-2011, 09:52
Contrary to popular belief, the lens works with other than nudes. .

WHAT.....:eek:

eddie
24-Nov-2011, 13:43
i cant find the plates.

i am not sure about the "filter" while mine is yellow in color there is no removable "filter" of any kind.

i may have given the plates away and not sure i can find them in my archives.....

alex from holland
25-Nov-2011, 04:49
Craig, sorry i get into your thread, but i have also "such" a lens.
Mine is a 500 mm f4 with the following tekst
Portrait objectiv kronar 500mm f4 oscar simon dresden
But it has not a yellowish look. It's just a single element lens
http://www.pbase.com/alex28/image/131748228.jpg

Craig Tuffin
25-Nov-2011, 05:11
A nice lens Alex and a perfect focal length for bigger plates.

Have you shot anything with it yet?

alex from holland
25-Nov-2011, 05:17
A nice lens Alex and a perfect focal length for bigger plates.

Have you shot anything with it yet?

Nope not yet.
I have tried several soft focus lenses for wet plate, but somehow it doesn't work right.
Lot's of unpleasant glow.

alex

Steven Tribe
25-Nov-2011, 05:56
This is a later "Kronar" follow-on from the Plasticca production after Zweirzina left Dresden in a hurry (mid 1930's)!
Plasticca range had a 60cm but not the useful (sizewise) 50cm.
I have a feeling that the very dramatic soft lenses and most alternative processes don't combine too well - too many variables?

Emil Schildt
25-Nov-2011, 08:21
This is a later "Kronar" follow-on from the Plasticca production after Zweirzina left Dresden in a hurry (mid 1930's)!
Plasticca range had a 60cm but not the useful (sizewise) 50cm.
I have a feeling that the very dramatic soft lenses and most alternative processes don't combine too well - too many variables?

This Kronar is only the second I have seen.. rare? (A frend of mine has one)

Alex: try it out and show us - at least some made in a "normal" technique.. I am curious..

Steven: I do think that soft focus (drematic) images can be used for alternative techniques. I certainly can think of some...

But I don't know about the wet plate - maybe the "mistakes" in pouring interfear with the image?

eddie
25-Nov-2011, 08:51
I have a feeling that the very dramatic soft lenses and most alternative processes don't combine too well - too many variables?

this one DOES.



But I don't know about the wet plate - maybe the "mistakes" in pouring interfear with the image?

normally soft focus lenses do not work well with wet plate. this one does. i have used it with great success.

eddie

Craig Tuffin
25-Nov-2011, 09:15
this one DOES.



normally soft focus lenses do not work well with wet plate. this one does. i have used it with great success.

eddie

I remember this plate...nice one Eddie!!!

Emil...I think you should try wet-plate...you'd be outstanding!!!

I was also a believer that SF lenses don't work with Ambrotypes or Tintypes...that they needed some area of sharpness. However, when considering wet plate negatives, I think the transition to an albumen or salt print actually works very, very well. Julia Margaret Cameron is one of my heros and I don't think she has a sharp image in her complete body of work. She worked in minutes rather than seconds most of the time so sharpness was out.

I recently tried to prove my theory wrong by finally shooting an ambrotype with my eidoscope instead of leaving it in the cabinet until the film came out.

http://farm7.staticflickr.com/6005/6017123177_4f368a7f89_b.jpg

Steven Tribe
25-Nov-2011, 11:06
Alex, do you have problems getting an acceptible focus with the 50cm O.Simon Kronar with close images? Our friend in Oslo finds the 60cm Plasticca doesn't produce a sharp central area in a small studio.

eddie
25-Nov-2011, 11:08
Basically the glow from the sf makes the plate look over exposed. U need to print a WP neg to get the glow. Just like a regular Neg image.

John coffer and I had this talk when I was shooting my eidoscope at his place. I kept cutting the exposure till there was zero details and it looked like mush. I switched to my Cooke and the negs were perfect.

alex from holland
25-Nov-2011, 12:01
I have yried my eidoscope which was acceptable.
2 weeks ago i tried a nice Darlot d'artiste which showed a beautiful picture on the ground glass, but in real it looked horrible

I haven't tried this kronar yet. Will try ot in the coming weeks. Have tp make a new lensplate for it.... Time, time, time