18 votes
Accepted

What is the white square near the viewfinder of the Fujica GW690?

As you can see in the image below from the service manual, the volume behind these two features is occupied by the view finder assembly. Image source: manualslib.com Image source: manualslib.com ...
bogl's user avatar
  • 739
18 votes
Accepted

What is this medium format military rangefinder camera?

It is a 70mm Graflex KE-4 “Combat Graphic” made from 1953-1957. Graflex KE-4 Combat Graphic
Mike Sowsun's user avatar
  • 12.2k
15 votes

Why is the market for digital rangefinder cameras so much smaller than it was for film-based rangefinders?

It isn't that rangefinders have struggled in the era of digital. It's that rangefinders struggled to survive the era of the SLR. The SLR started putting the rangefinder to bed long before digital came ...
OnBreak.'s user avatar
  • 20.5k
8 votes
Accepted

Rangefinder focus shadow discrepancy

What you describe is a misaligment of the beam splitter (which, despite its name, in this case combines or overlays the image from the moving mirror or prism in the RF over the straight-through image ...
Zeiss Ikon's user avatar
  • 7,141
7 votes

Why is the market for digital rangefinder cameras so much smaller than it was for film-based rangefinders?

I don't remember seeing many popular rangefinder cameras at the dawn of the digital era. The main reason for the demise isn't digital-vs-film, but the pervasiveness of zoom lenses, for which they are ...
xenoid's user avatar
  • 21.3k
6 votes
Accepted

Can I use a restored 55-year-old fixed-lens film camera without working aperture blades?

Neither of your stated options is a good one. Given the stated condition of the aperture blades, the best option would be to replace them with good ones from a (non-functioning for some other reason) ...
Zeiss Ikon's user avatar
  • 7,141
6 votes
Accepted

Why are rangefinders not directly above the lens?

Rangefinders use two "viewports" in order to get the split image to aid in focusing. If you look closely you will see the second little window usually near the lens itself. It would be possible to ...
Mike Sowsun's user avatar
  • 12.2k
6 votes

How can I use a Ricoh 35 FM film rangefinder to take photographs at night?

You are shooting with a film camera. The ISO dial only tells the camera the speed of the film you have loaded so the camera meter can set the aperture. You will need to use a fast ISO 400 film but ...
BobT's user avatar
  • 6,734
5 votes

Why is the market for digital rangefinder cameras so much smaller than it was for film-based rangefinders?

Mirrorless fills this niche in a lot of ways, and particularly as EVFs and sensors have gotten better, the downsides to that have narrowed. The "rangefinder" in "rangefinder cameras" refers to these ...
mattdm's user avatar
  • 143k
4 votes

How is the yellow patch focusing applied in a rangefinder mechanism, and can it be renewed?

Yes, you are correct, I found this dire warning: "and you shouldn’t clean the colored (usually yellow) glass or the color is likely to come off and then no more double-image in your ...
Alaska Man's user avatar
  • 3,608
3 votes

Why is the market for digital rangefinder cameras so much smaller than it was for film-based rangefinders?

Rangefinder cameras are compact because they do not need extra room for a mirror. The mirrorlessness is accomplished by having one optical path for a photosensitive medium (film here) and another for ...
Crowley's user avatar
  • 1,808
3 votes

What is Parallax error in the context of panorama?

No, that is not parallax error, that's remapping distortion and is perfectly normal for a panorama that wide. When you have an image on a flat plane, you can't actually get more than a 90º field of ...
inkista's user avatar
  • 52.1k
3 votes

Why are rangefinders not directly above the lens?

One advantage of having the viewfinder on the top left corner of the camera is that you can get your right eye very close to the viewfinder without having your nose bump against the back of the camera ...
Jules's user avatar
  • 1,050
2 votes
Accepted

Why do I get a light halo only on sunny exposures using my FED 2?

Definitely looks like a damaged shutter blind-this can happen if you don't use a lens cap on sunny days the sun will burn the blind via the lens
user53284's user avatar
2 votes
Accepted

Why does my Zorki 4 take blurred pics on infinity focus?

You need to adjust the infinity stops on the lens so the rear element goes closer to the image plane. Adapted lenses have this problem and most adaptors with correction elements Destroy image quality.
Andrew Button's user avatar
2 votes
Accepted

How would I be able to properly calibrate the Kalart Rangefinder on a Speed Graphic?

On both sides of the rails, very close to the camera are flip-over stops, one on the right, one of the left. When you open the closed camera cover, you pull the lens forward until it contacts these ...
Alan Marcus's user avatar
  • 39.2k
2 votes

Argus C3 rangefinder camera — no lens ok?

An Argus C3 rangefinder requires a lens to take photos. Without a lens the light striking the film would be unfocused and would be one big blur with perhaps slight variations in brightness. There ...
Michael C's user avatar
  • 175k
2 votes

What is Parallax error in the context of panorama?

We've known about this effect and been manipulating it for years. This is a good example of perspective, specifically, spherical perspective. Here's a good explanation using diagrams that would be ...
Stan's user avatar
  • 5,521
2 votes

Were there multiple versions of the Ricoh 500G?

It's not uncommon for there to be multiple revisions of camera models (or any other type of mass produced product). If you are not mistaken about the identity of the cameras you have disassembled, the ...
xiota's user avatar
  • 27k
2 votes

What's causing the shadow running down the side of my photographs

I had a very similar thing happen 20ish years ago on my old Pentax K1000, the tensioning mechanism on the curtains was damaged and the rear curtain was traveling faster than the front curtain. Not an ...
LightBender's user avatar
  • 3,181
2 votes

Samoca 35 II Film Loading

I've never needed to do this, but I might try using a pair of diagonal cutting pliers to cut the two nubby "spokes" out of the end of the tip of the film cannister that is at the bottom when ...
Michael C's user avatar
  • 175k
1 vote
Accepted

Is is possible/practical to adjust the Gost scale light meter on a Kiev 4M to work in ASA values?

Relevant information is available both at the Kiev Survival Site and in Isaak S. Maizenberg's book All You Need to Know About Design and Repair of Russian Cameras (1996). The screw you mention is used ...
Kahovius's user avatar
  • 2,758
1 vote

How to use rangefinder cameras with small viewfinders, while wearing glasses?

I use a mirrorless camera with focus peaking, not a rangefinder. However, when focus assist is enabled, I see a magnified view through the viewfinder, which is akin to your being unable to see the ...
xiota's user avatar
  • 27k
1 vote
Accepted

How date a Fuji GW690 III by the serial number?

According to Camerapedia: Fujica GW690, the GW690 III was released in February 1992. There is a photo.net post from Nov 2001 that describes a FujiFilm representative stating that the camera had been ...
xiota's user avatar
  • 27k
1 vote
Accepted

Should the aperture ring of a Canonet GIII QL17 have detent stops all the way round?

I've been able to check with another example. The aperture ring doesn't have stops all the way round.
Daniele Procida's user avatar
1 vote

Why is the market for digital rangefinder cameras so much smaller than it was for film-based rangefinders?

As mattdm notes, rangefinders use a focusing mechanism based on parallax. Several opine that any popularity rangefinders might have had were for their compact size, not their focusing mechanism. (...
xiota's user avatar
  • 27k
1 vote

Are high end rangefinder lenses better than SLR lenses? Would I notice?

I do not think the Nikon Df can really be compared against Contax G2. One is a digital camera, the other a film one. Apples and oranges... It is true that having to accommodate the moving mirror ...
Jindra Lacko's user avatar
  • 5,990

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