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.

On 31/12/17 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?


When I took some seriusly long exposures pitctuers at might, I thought I
had detyected colour atrts, until I got te same strats against a hill
with a fox on iy.

CCDs are not perfect - sounds like one of te coulums is sub par

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.


--
"In our post-modern world, climate science is not powerful because it is
true: it is true because it is powerful."

Lucas Bergkamp

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).

On 31/12/17 15:05, The Natural Philosopher wrote:
On 31/12/17 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?


When I took some seriusly long exposures pitctuers at might, I thought I
had detyected colour atrts, until I got te same strats against a hill
with a fox on iy.

CCDs are not perfect - sounds like one of te coulums is sub par

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.


Thanks. That's useful to know.


Nick

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

Nick Odell wrote:

I've got enough film to keep me out of mischief too.

Do you have a good supplier?

Since Poundland stopped selling Agfa Vista Plus, I've been gloomily
watching my personal stash decline.

If they have it in again (there have always been interruptions in their
supply, but this time there are noises that it may be permanent) I'm
going to buy a couple of hundred rolls and keep them in the freezer.

Daniele

On 01/01/18 10:37, D.M. Procida wrote:
Nick Odell wrote:

I've got enough film to keep me out of mischief too.

Do you have a good supplier?

Amazon has tonnes of the stuff

Since Poundland stopped selling Agfa Vista Plus, I've been gloomily
watching my personal stash decline.

If they have it in again (there have always been interruptions in their
supply, but this time there are noises that it may be permanent) I'm
going to buy a couple of hundred rolls and keep them in the freezer.

Daniele



--
Climate Change: Socialism wearing a lab coat.

On 01/01/18 10:37, D.M. Procida wrote:
Nick Odell wrote:

I've got enough film to keep me out of mischief too.

Do you have a good supplier?

Since Poundland stopped selling Agfa Vista Plus, I've been gloomily
watching my personal stash decline.

If they have it in again (there have always been interruptions in their
supply, but this time there are noises that it may be permanent) I'm
going to buy a couple of hundred rolls and keep them in the freezer.



The guy who runs the austerityphoto.co.uk blog has published an email
reply he received from Poundland confirming that they will not be
stocking Agfa Vista Plus any more, unfortunately. I still have some in
my fridge at home but my stocks are also running low.

Recently I've been buying film close to expiry or slightly beyond expiry
on eBay and been having reasonable results. It's no worse than keeping
groceries beyond BB date: if they've been kept properly they are usable
for ages and if you are disciplined about bidding for film and are
prepared to let overpriced items go, sometimes you get lucky. I've also
bought some quite old film at ridiculously cheap prices. The only things
I feel it helps to remember are that very fine grain film will tend to
lose its definition over the years and high speed film will need
de-rating faster than low speed film. My rule of thumb is to halve the
ASA after 5 or 6 years for ASA 800 and above, then halve it again every
ten or so years after that. ASA 400 and below, just halve it every 10-15
years. Works for me.

Nick

Nick Odell wrote:

On 01/01/18 10:37, D.M. Procida wrote:
Nick Odell wrote:

I've got enough film to keep me out of mischief too.

Do you have a good supplier?

Since Poundland stopped selling Agfa Vista Plus, I've been gloomily
watching my personal stash decline.

If they have it in again (there have always been interruptions in their
supply, but this time there are noises that it may be permanent) I'm
going to buy a couple of hundred rolls and keep them in the freezer.



The guy who runs the austerityphoto.co.uk blog has published an email
reply he received from Poundland confirming that they will not be
stocking Agfa Vista Plus any more, unfortunately.

I saw that too, but I still hope that eventually they'll get hold of
more.

The only things I feel it helps to remember are that very fine grain film
will tend to lose its definition over the years and high speed film will
need de-rating faster than low speed film. My rule of thumb is to halve
the ASA after 5 or 6 years for ASA 800 and above, then halve it again
every ten or so years after that. ASA 400 and below, just halve it every
10-15 years. Works for me.

My needs are strictly fun-based, so I am sure I can get away with it.

Fo Christmas my son gave me a packet of soda crystals, cheap
decaffeinated coffee and vitamin C powder; we're going to try a
home-made developing solution.

Daniele

In article ,
says...


The guy who runs the austerityphoto.co.uk blog has published an email
reply he received from Poundland confirming that they will not be
stocking Agfa Vista Plus any more, unfortunately. I still have some in
my fridge at home but my stocks are also running low.


7 Day Shop still has stocks of 35mm (and other) film but not
at Poundland prices, though!

https://www.7dayshop.com/35mm-negative-and-slide-film


--

Terry

---
This email has been checked for viruses by AVG.
http://www.avg.com

On 02/01/18 08:27, D.M. Procida wrote:
Nick Odell wrote:

On 01/01/18 10:37, D.M. Procida wrote:
Nick Odell wrote:

I've got enough film to keep me out of mischief too.

Do you have a good supplier?

Since Poundland stopped selling Agfa Vista Plus, I've been gloomily
watching my personal stash decline.

If they have it in again (there have always been interruptions in their
supply, but this time there are noises that it may be permanent) I'm
going to buy a couple of hundred rolls and keep them in the freezer.



The guy who runs the austerityphoto.co.uk blog has published an email
reply he received from Poundland confirming that they will not be
stocking Agfa Vista Plus any more, unfortunately.

I saw that too, but I still hope that eventually they'll get hold of
more.

The only things I feel it helps to remember are that very fine grain film
will tend to lose its definition over the years and high speed film will
need de-rating faster than low speed film. My rule of thumb is to halve
the ASA after 5 or 6 years for ASA 800 and above, then halve it again
every ten or so years after that. ASA 400 and below, just halve it every
10-15 years. Works for me.

My needs are strictly fun-based, so I am sure I can get away with it.

Fo Christmas my son gave me a packet of soda crystals, cheap
decaffeinated coffee and vitamin C powder; we're going to try a
home-made developing solution.


Excellent! I've had a lot of fun playing with cafenol I'm sure you've
discovered already but, typing the film brand and speed plus the word
cafenol into google will offer little tweaks to the basic recipe that
may improve the results. There are usually samples to compare. You can
develop C41 colour film such as the Agfa Vista in cafenol but of course
it only comes out B&W and I don't think the results are as good as using
a bona fide B&W film.

A lot of people skip the stop bath these days but if it was good enough
for the old-timers.... I use dilute spirit vinegar.

And to keep everything to kitchen-cabinet chemicals, I use common salt
as a fixer. You must use a fully-saturated solution (that's just under
400g to make up a litre) and the process takes about 24hrs but it does
avoid using chemicals that ought not be tipped down a domestic drain.
Don't forget, all the discarded silver ends up in the fixer so you can
reclaim it by electrolysis if you want to.

Nick

On 02/01/18 10:36, Terry Casey wrote:
In article ,
says...


The guy who runs the austerityphoto.co.uk blog has published an email
reply he received from Poundland confirming that they will not be
stocking Agfa Vista Plus any more, unfortunately. I still have some in
my fridge at home but my stocks are also running low.


7 Day Shop still has stocks of 35mm (and other) film but not
at Poundland prices, though!

https://www.7dayshop.com/35mm-negative-and-slide-film


That's really useful to know. Hope they are still doing it when I get
back in May.

Thanks

Nick