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Alan Erskine
January 14th 07, 04:04 AM
However, seeing there are so many photographers in here, you should know
best.

I was wondering how sensitive a light meter is and if it would work inside.
I just replaced a flouro light bulb (lasted 2.5 years and saved me over
$80!) and noticed that the new bulb is now somewhat brighter despite being
identical in make and consumption and I'm curious if the bulbs lose
efficiency over time and by how much.

--
Alan Erskine

- Lunacy -
January 14th 07, 04:59 AM
fluros degrade in performance all the time

sometimes when putting new badly stored fluros in you can see the gas
revolve around the cylinder when the light is first turned on .


"Alan Erskine" > wrote in message
...
> However, seeing there are so many photographers in here, you should know
> best.
>
> I was wondering how sensitive a light meter is and if it would work
> inside.
> I just replaced a flouro light bulb (lasted 2.5 years and saved me over
> $80!) and noticed that the new bulb is now somewhat brighter despite being
> identical in make and consumption and I'm curious if the bulbs lose
> efficiency over time and by how much.
>
> --
> Alan Erskine
>
>
>

- Lunacy -
January 14th 07, 04:59 AM
fluros degrade in performance all the time

sometimes when putting new badly stored fluros in you can see the gas
revolve around the cylinder when the light is first turned on .


"Alan Erskine" > wrote in message
...
> However, seeing there are so many photographers in here, you should know
> best.
>
> I was wondering how sensitive a light meter is and if it would work
> inside.
> I just replaced a flouro light bulb (lasted 2.5 years and saved me over
> $80!) and noticed that the new bulb is now somewhat brighter despite being
> identical in make and consumption and I'm curious if the bulbs lose
> efficiency over time and by how much.
>
> --
> Alan Erskine
>
>
>

David Dyer-Bennet
January 14th 07, 04:14 PM
Alan Erskine wrote:
> However, seeing there are so many photographers in here, you should know
> best.
>
> I was wondering how sensitive a light meter is and if it would work inside.
> I just replaced a flouro light bulb (lasted 2.5 years and saved me over
> $80!) and noticed that the new bulb is now somewhat brighter despite being
> identical in make and consumption and I'm curious if the bulbs lose
> efficiency over time and by how much.

Yes, a light meter (any vaguely modern photographic model anyway) is
perfectly capable of accurately reading normal and even very dim room
light. Some of them even come with conversion tables to give you
physics units instead of photographic units; but if you're just looking
to quantify the difference between two bulbs, even the photographic
units are fairly useful.

David Dyer-Bennet
January 14th 07, 04:14 PM
Alan Erskine wrote:
> However, seeing there are so many photographers in here, you should know
> best.
>
> I was wondering how sensitive a light meter is and if it would work inside.
> I just replaced a flouro light bulb (lasted 2.5 years and saved me over
> $80!) and noticed that the new bulb is now somewhat brighter despite being
> identical in make and consumption and I'm curious if the bulbs lose
> efficiency over time and by how much.

Yes, a light meter (any vaguely modern photographic model anyway) is
perfectly capable of accurately reading normal and even very dim room
light. Some of them even come with conversion tables to give you
physics units instead of photographic units; but if you're just looking
to quantify the difference between two bulbs, even the photographic
units are fairly useful.

Alan Erskine
January 15th 07, 02:12 AM
"David Dyer-Bennet" > wrote in message
. net...
> Alan Erskine wrote:
> > However, seeing there are so many photographers in here, you should know
> > best.
> >
> > I was wondering how sensitive a light meter is and if it would work
inside.
> > I just replaced a flouro light bulb (lasted 2.5 years and saved me over
> > $80!) and noticed that the new bulb is now somewhat brighter despite
being
> > identical in make and consumption and I'm curious if the bulbs lose
> > efficiency over time and by how much.
>
> Yes, a light meter (any vaguely modern photographic model anyway) is
> perfectly capable of accurately reading normal and even very dim room
> light. Some of them even come with conversion tables to give you
> physics units instead of photographic units; but if you're just looking
> to quantify the difference between two bulbs, even the photographic
> units are fairly useful.

Thanks, David; much appreciated.


--
Alan Erskine

Alan Erskine
January 15th 07, 02:12 AM
"David Dyer-Bennet" > wrote in message
. net...
> Alan Erskine wrote:
> > However, seeing there are so many photographers in here, you should know
> > best.
> >
> > I was wondering how sensitive a light meter is and if it would work
inside.
> > I just replaced a flouro light bulb (lasted 2.5 years and saved me over
> > $80!) and noticed that the new bulb is now somewhat brighter despite
being
> > identical in make and consumption and I'm curious if the bulbs lose
> > efficiency over time and by how much.
>
> Yes, a light meter (any vaguely modern photographic model anyway) is
> perfectly capable of accurately reading normal and even very dim room
> light. Some of them even come with conversion tables to give you
> physics units instead of photographic units; but if you're just looking
> to quantify the difference between two bulbs, even the photographic
> units are fairly useful.

Thanks, David; much appreciated.


--
Alan Erskine

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