On 31/12/17 19:42, newshound wrote:
On 31/12/2017 14:45, Nick Odell wrote:
Digital this time.

I've discovered "tram lines" (well, a single tram line) about one
pixel wide running vertically through a series of images I've taken at
night using long exposures. No sign of the same effect in ordinary
pictures taken in ordinary conditions. Unfortunately I'm currently
about 8,000 miles away from where I've stored the other night-time
pictures taken with the same camera but I don't recall seeing tram
lines previously.

I'm wondering if this is a known effect with low light levels and CCD
devices or something else is happening?

I take a lot of photos using roll film so I'm used to tackling tram
lines in that context but in digital? What's going on?

Camera is an old Fujifilm S1500 with a 10Mp sensor, if that's relevant.

Thanks,

Nick
PS, please don't infer anything from any lack of response from me at
any time. We've had several bouts of periods of days without
electricity out here and no electricity = no internet so connecting to
uk.d-i-y can be an issue somethimes.

Sensors have improved enormously in sensitivity since 2009. Even a
budget smartphone will probably out-perform this camera now.

I agree with TNP, you've probably got a dodgy column. If it's your only
available camera you can probably do a reasonable digital fix (but don't
expect results like a modern camera).

It's not the only digital camera I have over he the other one is five
years older, has half the megapixels but twice the CCD surface area and
a very nice lens and takes good, sharp pictures but the Fujifilm is more
versatile.

I've also got a ton-and-a-half of analogue cameras ranging from a
clockwork, wind-up Canon half-frame, through a couple of full frame 35mm
jobbies up to a medium format Bronica. I've got enough film to keep me
out of mischief too.

Many thanks - and Happy New Year, one and all.

Nick