John Seaman

I just realised from the title of your post that you already know about the Rapid system. My bad.

No real experience of using these, I had a camera and a few cassettes a while back but never put a film through. If I recall correctly, the system works by the film being pushed into the receiving cassette by the sprocket wheel. So once the tail end of the film passes the sprocket, the film advance stops, leaving a short tail of film. The pushing action can only support a relatively short length of film, hence some Karat cameras were square format to enable more frames to be packed in. The system was briefly resurrected post war and renamed Rapid, which had the same cassettes but with a method of communicating the film speed to the camera. It was adopted by a number of Japanese makers like Minolta. And Mark, welcome to the Classic Camera forum.

Hope you have a backup. Good luck.

Welcome to the site. I too am very keen on classic cameras but to do serious photography you really need to look to acquiring more capable and up to date equipment. The Argos cameras are iconic (hate the word) but very limited and by current standards, very awkward to use. You also have to decide whether toconcentrate on 35mm or on medium format, each having their advantages and disadvantages. Whatever happens, good luck and don't hesitate to ask more specific questions and to post your results on photo.net, you can request advice in the Seeking Critique forum.

Yes, it should be usable. i had one of these briefly, with a similar problem, which could not be corrected. If I recall correctly, there are five mechanical shutter speeds from 1/60 to 1/1000 which work without batteries. So you can set the exposure manually. There's an old photo.net article about it here:

Ricoh Auto 66 TLR

The mount of the Komura can't be identified from the picture, however if it's not a Canon mount it's very unlikely that an adaptor is available. It would make much more sense to look for some nice Canon FD lenses, like the 50mm F/1.8, they can be found quite cheaply these days.

The 7000 works fine with rechargeables. Actually there were two battery holders, one for AAA's and one for AA's. I think the OP's camera has the one for AAA's which is slimmer,

No. A photo.net member asking for help.

Minolta 24-85 on Sony A900

Actually the camera was designed so that a plain Baldina could be upgraded to a coupled rangefinder Super Baldina by replacing the whole top assembly. Look at the picture below, an old camera catalogue, saying that the upgrade cost £8.8.0 (eight pounds eight shillings). This suggests that removing the top might not be too difficult. I found an old photo.net thread about this - scroll down to the bottom to see two posts by Jack Critchley:

Walzflex TLR

Exactly right.

Kodak DCS520 2MP DSLR

Between guide numbers and TTL there was the non-TTL auto system in which the flashgun controlled the exposure via a light sensor on the front. it's still very usable as I suggested in an earlier post: But yes, TTL was found to be unreliable on digital SLR's because of the shiny nature of the sensor.