ivzhao
a pro lottery winner
i know it's a dumb newbie question. but can we?
on RangeFinder and on SLR?
thank you
on RangeFinder and on SLR?
thank you
can we change lens when there's a film inside?
- Thread starter ivzhao
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FrankS
Registered User
Yep. No problem. Turning your back to the sun while you do it outside wouldn't hurt though.
einolu
Well-known
yeah, the shutter must be light tight, unless your using a soviet camera 😉...
kmack
do your job, then let go
einolu said:
As an avid FSU shooter I object. I have never had to use more than two feet of duct tape to keep my Zorki light tight.
peter_n
Veteran
LOL kmack! Frank's tip about changing the lens in shadow is a sensible one though.
ivzhao
a pro lottery winner
and one more question: why the film boxs say that "to avoid direct sunlight."?? they will get exposed anyway so what's the difference between direct sunlight and normal light?
cp_ste.croix
At the beginning again.
Those warnings are for people who are not like you and me my friend...just be sensible and don't sweat it. Your pics in your gallery show that you're doing something right.
Yay for another Vancouverite!
Yay for another Vancouverite!
ivzhao
a pro lottery winner
cp_ste-croix said:
how many people on RRF are from Vancouver? alot?
and what happend to your knee
pvdhaar
Peter
This question is not as dumb as it may seem.. For cameras which use focal plane shutters (no matter whether SLR or RF), lenses can indeed be removed safely with film inside.ivzhao said:
It's with leaf shutter lensed cameras that there are special precautions. Cameras like BronicaRF645 and Mamiya 6 and 7 have blinds that have to be moved in front of the film chamber before unmounting a lens. On some cameras these blinds are automatic, but on others they need to be pulled manually.
nomade
Hobbyist
I've done that several times with my FED3, no harm as long as ur not facing the sun like Frank said...
VinceC
Veteran
>>ivzhao -- and one more question: why the film boxs say that "to avoid direct sunlight."?? they will get exposed anyway so what's the difference between direct sunlight and normal light?<<
Leaving the film box out FOR A LONG TIME in direct sunlight -- such as for weeks or on a store shelf -- can lead to fogging due to excessive exposure to heat.
If the film cassette is exposed for more than a minute or so to direct sunlight, stray light could creep in through the felt-covered slit and also fog the film.
On changing lenses, with rangefinders, there is no SLR mirror to help block the light, so that's why it's a good idea to keep your back to the sun. An older shutter can develop small light leaks around the edges. My Nikon S3 will fog film pretty quickly if I change lenses in open sunlight, but if I turn my back to the sun, there's no fogging.
Leaving the film box out FOR A LONG TIME in direct sunlight -- such as for weeks or on a store shelf -- can lead to fogging due to excessive exposure to heat.
If the film cassette is exposed for more than a minute or so to direct sunlight, stray light could creep in through the felt-covered slit and also fog the film.
On changing lenses, with rangefinders, there is no SLR mirror to help block the light, so that's why it's a good idea to keep your back to the sun. An older shutter can develop small light leaks around the edges. My Nikon S3 will fog film pretty quickly if I change lenses in open sunlight, but if I turn my back to the sun, there's no fogging.
payasam
a.k.a. Mukul Dube
With a cloth focal plane shutter, you might also check for pin-holes: though those would show up even with a lens mounted.
jaapv
RFF Sponsoring Member.
How does one creep at the speed of light?
fgianni
Trainee Amateur
payasam said:
If you have pinholes in your shutter, and you remove the lens, would't that count as pinhole photography? 😀
cp_ste.croix
At the beginning again.
ivzhao said:
There are a few of us...Sockeyed, Frank G, Alec C, Mkky...prolly some others. We should all get together after the holiday rush is over.
My knee was ruined during rugby, but is getting better now. It's just costing me a lot...for some reason they gave me my xrays and i thought it would be cool to PS them. Not a rangefinder shot, but neat nonetheless.
VinceC
Veteran
>>How does one creep at the speed of light?<<
Through the slow slow introduction of photons interacting with light-sensitive emulsions, resulting in a gradual build-up that would fog or otherwise intrude on the latent image. This phenomenon would appear to "creep" forward into the frame from one side or edge, its size dependent on the length of exposure to the light source.
Through the slow slow introduction of photons interacting with light-sensitive emulsions, resulting in a gradual build-up that would fog or otherwise intrude on the latent image. This phenomenon would appear to "creep" forward into the frame from one side or edge, its size dependent on the length of exposure to the light source.
P
pshinkaw
Guest
Since the photons move at the speed of light but there are very few of them, it might be more of a "trickle" than a "creep".
-Paul
-Paul
FrankS
Registered User
Semantics! 🙂
Gabriel M.A.
My Red Dot Glows For You
You'd be surprised that sometimes it's also phonics.FrankS said:
Sonnar Brian
Established
> It's with leaf shutter lensed cameras that there are special precautions. Cameras like BronicaRF645 and Mamiya 6 and 7 have blinds that have to be moved in front of the film chamber before unmounting a lens. On some cameras these blinds are automatic, but on others they need to be pulled manually.
I can't resist. Leica actually made a Summicron with a built in Compur shutter with sync. You left the focal plane open using "B" and then could get fast flash sync. It would have been better on a Nikon with "T" on the shutter. And yes, I've thought about mounting a Kodak 50mm lens with built in shutter to a Nikon internal mount... Fast Sync on a Nikon RF.
I can't resist. Leica actually made a Summicron with a built in Compur shutter with sync. You left the focal plane open using "B" and then could get fast flash sync. It would have been better on a Nikon with "T" on the shutter. And yes, I've thought about mounting a Kodak 50mm lens with built in shutter to a Nikon internal mount... Fast Sync on a Nikon RF.
