Old camera(s) 2/2:
Here are two more old cameras I recently aquired

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Wirgin Auta
Year: 1930s-1940s (ca; I couldn't find any serial number)
Type: foldable
Format: Medium format
This is a foldable "pocket" camera (I guess), though it is quite heavy with a weight of 660 g.
The dimensions are 35 mm (depth, folded), 135 mm (depth, unfolded), 77 mm (height) and 160mm (width).
I did try to date it, but it proved difficult since it seems there are quite many variants of this camera with different lenses, shutters and general appearance.
Here is what the camera looks like when it is folded:
(and I would personally not have thought this was a camera if I only saw it like this)
And here the camera is unfolded. It's actually a bit tricky to fold it, I had to try quite a few times.
The shutter is a
Prontor shutter, and if you look at the photos at the bottom of the
Prontor page on Camera-wiki, it is fascinating to see how complex the internal mechanisms are.
The lens is a Wirgin Gewironar 10.5 cm f/4.5.
Links:
Camera-wiki:
https://camera-wiki.org/wiki/Wirgin_Auta
J. Noir:
https://www.jnoir.eu/en/cameras/wirgin/auta/
Next up we've got a real beauty, at least in my opinion

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I bought this camera because I have a personal, historical attachment to Yashica. The first "professional" camera I ever used was a
Yashica Electro 35 which belonged to my father (regretfully I don't have it, but I have a Yashica Electro 35 in mint condition at home). I also have three vintage Yashica lenses that I really like; they all give remarkably natural colors.
The camera below is something different though.
It's one of Yashica's twin lens reflex cameras (TLR), which were as I understand it the cheaper options compared to the famous and iconic
Rolleiflex TLRs which are collectables and can cost quite a bit.
Yashica-C
Year: 1968 (dated with the serial number 808287)
Type: Twin lens reflex (TLR)
Format: Medium format
Here is the Yashica-C along with the original leather case:
The shutter is a
Copal-MX shutter and the lens is a Yashikor 80mm f/3.5.
Well, actually, there are two identical lenses on the camera, since on TLRs the top lens is for the viewfinder and the bottom lens is the one used for taking the photo.
You open the viewfinder on the top, and as usually with TLRs you hold the camera at waist level and look straight down through the viewfinder when composing the photo. The viewfinder has also got a small magnifier which can be folded out to help you nail focus by looking at small details in the composition.
And here's the view though the viewfinder, showing a notebook on my desk:
And last, here is the camera opened:
The weight of the camera is 992 g, so almost 1 kg. The dimensions are 76 mm (width), 100 mm (depth) and 140 mm (height).
Links:
Yashica-C on Camerapedia:
https://camerapedia.fandom.com/wiki/Yashica-C
FIlm Still Photography:
https://www.filmstillphotography.com/yashica-c.html