Can 24 exp film be used in a 36 exp 35mm Camera?

On Nikons, I can reliably get a 37th frame when starting on frame 1. With FD mount Canons, I never could get the 37th frame-manual advance cameras would stop just short of it.

 

Below is a photo illustrating why I think this is. In the center is a Canon EF, which shares the same general body/film transport dimensions with the FTb and F-1. Above it is a Nikon F, and below it is a Nikon FA. Note the position of the shutter relative to the film caninister.

 

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The FM, which looks a lot like the FA in this view, like the FA has a vertical travel focal plane shutter.

Horizontal travel shutters have the shutter curtains rolled up on each side, which takes

extra space on the sides.

But I usually start with the counter on 0, which for both Canon and Nikon reliably

get 38 shots on a 36 roll, and 25 on a 24 roll. I might have once gone to 39.

For the Nikon, as well as I remember, when you move the film while putting it into

the slot on the take-up spool, and the sprockets turn, that advances the sprocket

counting, such that you don't get a whole frame after closing the back.

I don't remember the Canon doing this. That moves the start point on the

roll, which might mean one more or one less.

The FM, which looks a lot like the FA in this view, like the FA has a vertical travel focal plane shutter.

 

Horizontal travel shutters have the shutter curtains rolled up on each side, which takes

extra space on the sides.

 

But I usually start with the counter on 0, which for both Canon and Nikon reliably

get 38 shots on a 36 roll, and 25 on a 24 roll. I might have once gone to 39.

I chose those specific cameras for a reason. The EF(center camera) also has a vertical Copal Square shutter, while the F has a horizontal shutter.

Admittedly the EF is in an F-1 sized body, which was designed around a horizontal shutter. Still, though, when I've bothered to compare it side-by-side, Nikons seem to consistently have a shorter cartridge to film gate distance than comparable Canons. I'll have to look at the T90, which is the only Canon I still have designed from the ground up for a vertical shutter.

I'll also mention that, IIRC, Olympus keeps this distance short at least on the OM-1/2/4(and presumably the 3) despite the horizontal shutters.

I haven't tried it as I wanted to find some 12 exposure rolls to play with

It's been years since I've seen commercial 12 exposure rolls(probably not since grocery stores and places like that quit carrying "store" brands of film, or any film for that matter). If I had to guess, it may have been around ~2000, or about the time that digital P&Ss became common and affordable, and started replacing 35mm P&S cameras in volume. Even then, I seem to recall that they were a pretty poor value-if a 24 ex. roll of 400 speed negative film was $1.50, a 12 ex. roll might have been $1.

I'm not big on bulk loading, but this is part of why I keep a handful of bulk loaders around-when I want/need a short roll. About their only place for me is in a half frame camera, where a 36 ex. roll can seem to last forever.

 

(snip)

Admittedly the EF is in an F-1 sized body, which was designed around a horizontal shutter. Still, though, when I've bothered to compare it side-by-side, Nikons seem to consistently have a shorter cartridge to film gate distance than comparable Canons. I'll have to look at the T90, which is the only Canon I still have designed from the ground up for a vertical shutter.

 

(snip)

I still don't have a T90, which seems to get mentioned pretty often, but I do have a T80, which

mostly isn't discussed. Do people not like the T80?

I still don't have a T90, which seems to get mentioned pretty often, but I do have a T80, which

mostly isn't discussed. Do people not like the T80?

I've never had one, although I've been tempted at times to get one.

I think my turn-offs for it are

1. IIRC, functionally it is similar to the T50-I think I have one of those kicking around still. If I'm not mistaken(please correct me if I'm wrong) it only(practically) gives full program and some very, very limited functionality in unmetered manual mode

2. The selection of AF lenses for it is minimal, and I don't seem to recall that it had any focus aids for MF lenses aside from the electronic rangefinder.

I got my T80 for $17, a few years ago, and with only one lens.

I don't think I would have paid much more than that.

Using MF lenses on one does seem a strange thing to do.

I think I only used one roll of film on it. I do remember more than once, the AF deciding

to refocus just when I was taking the picture, such that it is nowhere close to in focus.

I've never had one, although I've been tempted at times to get one.

 

 

(snip)

 

2. The selection of AF lenses for it is minimal, and I don't seem to recall that it had any focus aids for MF lenses aside from the electronic rangefinder.

From: Canon T80 Camera - Specifications

> Cross-split prism rangefinder

It seems that many AF cameras now don't have the split-prism focus aid, and are hard to use with

MF lenses. I haven't actually tried a MF lens on the T80, though.