Technically the shutter speed and ISO part of the equation is factored in using a similar resistor, but I've never heard of it having any issues.
The Canon F-1 and FT/FTb/TX use no such resistors. There isn't anything to wear down on the metering circuit, save for the CdS cells itself. But i've yet to find one of those cameras with a aged (worn down, faulty) CdS cell or cells.
Technically the shutter speed and ISO part of the equation is factored in using a similar resistor, but I've never heard of it having any issues.
No, the Canon F-1 uses no variable resistors that move with the shutter speed dial or aperture dial. That is, no variable resistors that move frequently under normal use. Thus, they don't have any "resistor wear down" problem, which is indeed present on some Nikon F2 cameras, all Nikkormats and all Nikon F cameras.
When you move the aperture ring, the lollipop within the viewfinder moves. And when you move the speed dial (or the concentric ISO dial), the galvanometer itself is shifted in position. All these changes are purely mechanical, not electrical. Moreover, they don't depend on strings and pulleys. The only string is there is used solely for displaying the shutter speed at the finder, so it's superfluous.
It is a really reliable system.
This is why second-hand Canon F1,s and New F1,s are much better buys than Nikon F,s and F2,s. I have five Canon F1,s, and every one of them has an accurate light meter and agrees with each other within less than half a stop.the Canon F-1 uses no variable resistors that move with the shutter speed dial or aperture dial. That is, no variable resistors that move frequently under normal use. Thus, they don't have any "resistor wear down" problem, which is indeed present on some Nikon F2 cameras, all Nikkormats and all Nikon F cameras.
This is why second-hand Canon F1,s and New F1,s are much better buys than Nikon F,s and F2,s. I have five Canon F1,s, and every one of them has an accurate light meter and agrees with each other within less than half a stop.
How would you know which Nikon F 2 has wire wound resistors? and New Canon F 1,s photocells aren't CdS, there twin Silicon SPC cells.Some F2's have wirewound resistors which shouldn't wear out during the life of the camera.
CDS photocells often go bad however.
How would you know which Nikon F 2 has wire wound resistors?
New Canon F 1,s photocells aren't CdS, there twin Silicon SPC cells.
Not only it's " low light performance" George but S.P.C,s have a better spectoral response to colours.You know, there is a lot of hoopla over how superior SPC is, but they tend to be too sensitive, which often requires one to meter the scene more carefully than otherwise.
I greatly prefer the good working set of CDS in my late model F2 Photomic (wirewound resistor) to my F90x for casual shooting.
SPC's advantage is primarily in it's low light performance.
Next: I saw to complaints about the F-1 on the previous page. It is true that Canon says the mirror lock-up won't work at 1/2000. This must be a very small problem. Mirror lock-up is much more useful at slow end of the shutter speed dial. Who would want to use stop down-metering with a motor drive?
I can't imagine any situation when I would need to use B with a motor drive, or 1/2000 sec. with the mirror up on any camera I have ever owned in more than sixty years of photography.This was me.
I remembered there was something strange with the motor. I erroneously quoted the stop-down problem, which, you are right, is not that much of a problem.
But what really is annoying is that you cannot use B with the motor drive (set at S). Why that? That and the (also minor but you have to remember it) unavailable 1/2000s with mirror up make me enjoy the F2 much more.
Not only it's " low light performance" George but S.P.C,s have a better spectoral response to colours.
I can't imagine any situation when I would need to use B with a motor drive, or 1/2000 sec. with the mirror up on any camera I have ever owned in more than sixty years of photography.
Astro-photography and an intervalometer that also controls the length of exposure?I can't imagine any situation when I would need to use B with a motor drive, or 1/2000 sec. with the mirror up on any camera I have ever owned in more than sixty years of photography.
l can see from a purely academic standpoint that you are right, butAstro-photography and an intervalometer that also controls the length of exposure?
You did say "imagine".
What proportion of camera owners actually use a motor drive, mirror lock up or even 1/2000 shutter speed?l can see from a purely academic standpoint that you are right, but
what proportion of the potential buyers Matt would need this facility ?.
or even 1/2000 shutter speed?
I agree with you Matt if you are referring to SLR cameras in general, but both of these cameras were professional models that because of the high price very few of the camera buying public could afford when they were currently manufactured, for example, I remember in the 1980,s when I used to sell them at a professional dealer the Canon New F1 body with the AE finder was £930 a price most hobbyist photographers wouldn't or couldn't pay when the national average wage was £6,000 a yearWhat proportion of camera owners actually use a motor drive, mirror lock up or even 1/2000 shutter speed?
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