No.
Where are many of them in never used condition. Reason? Gem for collectors, but next to junk for using. This is why where are many Москва-2 in used condition and Москва-4 is most desirable among native users.
Next to junk for using? How do people like you dig up accusations like that ?
That's just a silly comment for sure.
The folders got competition from TLR's and SLR's, that's what happened. Later, the Hasselblad-design knocked both the folders and the TLR's off the marked.
There were loads more Moskva-5's produced than the former versions. The lens on the 5 is faster and better than the former ones too.
I have yet to hear any ravings about the 2 and the 4.
The reason why the 2 is somewhat collectible, I cannot say, most likely it is because it contains German parts and that the glass (at least how I know commie-glass), may have had German lenses in them. (the Jupiters did). it may also be that is is a super ikonta, while the 1 is not. The 1's was also produced by German parts, and more then likely also German glass, so I would believe those collectible as well.
Production and quality control was also generally better until the mid 60's in the Soviet union, although the 5 was produced from the end of the 50's to early 60's, nothing wrong with that era. The 5 is a fully Soviet camera, and it shows, both as good (solid and durable build) and bad (quality control, variances in optical performance).
Besides, the price point for these camera's aren't at all expensive,
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The first Moskva to be produced was the 1948 Moskva-1, that was at first produced with Zeiss Ikonta 6×9 pieces, and wth the help of Zeiss tools. Some 31.000 of this model were made until 1949.
The Moskva-2 was produced from 1947 to 1956, and over 197.000 of them were made. Where the Moskva-1 was assembled from original Zeiss Ikonta pieces, this one was made with original Super Ikonta pieces (which incorporates an uncoupled rangefinder).
From 1950 to 1951, the rather rare Moskva-3 was produced (only 11.385 made). This model resembled the original Moskva-1 in that it didn't have a rangefinder or a viewfinder. The strange thing about this camera is, that it wasn't meant for 120-film, but took sheet and plate film.
The Moskva-4 was produced from 1956 to 1958. Essentially a Moskva-2, it was equipped for both 6×9 and 6×6 photography, and was supplied with a 6×6 insert mask. Small numbers with Moskva-5 style tops were made.
From the Moskva-4 series 2, the Moskva-5 evolved. This was essentially the same camera as the former model, but it had an Industar-24 10.5cm f/3.5 instead of an Industar-23 11.0 cm f/4.5, and a Moment-24S shutter instead of a Moment-23S. Essentially still a Zeiss Super Ikonta copy, this camera has the advantage of a dual-format system, a good lens, a coupled rangefinder, an excellent finish, a self-timer, and a proper viewfinder.
The Moskva-5 stayed in production until 1960. A grand total of 216.457 (according to Princelle) were produced. Princelle also mentions that these cameras generally have an exemplary finish, something that I'm willing to take his word for.
http://cameras.alfredklomp.com/moskva5/