81A or 81B filter?

Hallo!

I intend to buy a filter 81A or 81B for my SLR. I want to remove a slight
bluish tint when I take pictures in a shade or on a overcast day. Which one
of the two is more useful for that purpose- what would you recommend? Would
it eliminate also that bluish tint on the snow, if I take a picture in the
shadow?

I know that both of the filters are designed to do that, I would just like
some advice from the experts - which one is preferred or more usable, or it
doesn't really matter?

Thank you.
Simon

From: "Simon"

I intend to buy a filter 81A or 81B for my SLR. I want to remove a slight
bluish tint when I take pictures in a shade or on a overcast day. Which one
of the two is more useful for that purpose- what would you recommend?

Depends on what the color temperature of the light is. Assuming you want to
correct for 5500 Kelvin, if it's ~6100 use the 81A, if it's 6500 use the 81B.

Would it eliminate also that bluish tint on the snow, if I take a picture
in the shadow?

If you use the right one, yes. If I were in your shoes and had to pick only
one to carry I'd opt for the 81B since light is often colder than 6500 where I
work.

which one is preferred or more usable, or it
doesn't really matter?

If you want to get it precisely accurate you need to buy a good color meter and
take accurate readings, but they are expensive, around $1,000. In taking
readings in shade at higher elevations (above 8,000 ft) I often find I need an
81EF or even stronger filter to remove *all* the excess blue. This is often
not important, but with white or yellow subjects (especially fall aspen leaves
for me) the blue tinge is distracting.

This link will help understand the problem.
http://www.photodo.com/art/Take14.shtml

Or you could always switch to digital and adjust the color balance after the
shot

Bill

On Tue, 22 Jun 2004 16:07:00 +0100, "Simon" wrote:

Hallo!

I intend to buy a filter 81A or 81B for my SLR. I want to remove a slight
bluish tint when I take pictures in a shade or on a overcast day. Which one
of the two is more useful for that purpose- what would you recommend? Would
it eliminate also that bluish tint on the snow, if I take a picture in the
shadow?

I know that both of the filters are designed to do that, I would just like
some advice from the experts - which one is preferred or more usable, or it
doesn't really matter?

Thank you.
Simon

I'm by no means an expert, but I'd go with the 81A. But these filters
are relatively inexpensive...you could get both and see which you like
best. Certain situations might scream for one over the other.

Simon wrote:
Hallo!

I intend to buy a filter 81A or 81B for my SLR. I want to remove a
slight bluish tint when I take pictures in a shade or on a overcast
day. Which one of the two is more useful for that purpose- what would
you recommend? Would it eliminate also that bluish tint on the snow,
if I take a picture in the shadow?


Why not a skylight filter? That should do the job better IMO.

I know that both of the filters are designed to do that, I would just
like some advice from the experts - which one is preferred or more
usable, or it doesn't really matter?

Thank you.
Simon

--
Joseph E. Meehan

26 + 6 = 1 It's Irish Math

Simon wrote:

I intend to buy a filter 81A or 81B for my SLR. I want to remove a slight
bluish tint when I take pictures in a shade or on a overcast day. Which one
of the two is more useful for that purpose- what would you recommend? Would
it eliminate also that bluish tint on the snow, if I take a picture in the
shadow?

I know that both of the filters are designed to do that, I would just like
some advice from the experts - which one is preferred or more usable, or it
doesn't really matter?


They are so close together that you will likely not notice the
difference.

eg: If the target film is "daylight" (5500K), then

81A would be "correct" for a 6000K source...
81B would be "correct" for a 6300K source...
81C would be "correct" for a 7000K source... (cloudy sky)

(Hoya "Light Source Conversion Diagram", CAT 8810E)

All pretty close together. The "C" would probably be too warm in
many situations, the "A" or "B" would be sufficient.

(FWIW, I have only an 81A for shooting subjects in open shade).

Fuji's advice for Sensia and Provia film is for
an 81A to be used in day cloudy/open shade conditions.

Cheers,
Alan.


--
--e-meil: there's no such thing as a FreeLunch.--

Simon,

Get a Nikon A2 filter instead - the world's best warming filter, in my opinion.

Mike Davis

http://www.AccessZ.com


Simon wrote:
: Hallo!

: I intend to buy a filter 81A or 81B for my SLR. I want to remove a slight
: bluish tint when I take pictures in a shade or on a overcast day. Which one
: of the two is more useful for that purpose- what would you recommend? Would
: it eliminate also that bluish tint on the snow, if I take a picture in the
: shadow?

: I know that both of the filters are designed to do that, I would just like
: some advice from the experts - which one is preferred or more usable, or it
: doesn't really matter?

: Thank you.
: Simon



--

"Simon" wrote in message
...
Hallo!

I intend to buy a filter 81A or 81B for my SLR. I want to remove a slight
bluish tint when I take pictures in a shade or on a overcast day. Which
one
of the two is more useful for that purpose- what would you recommend?
Would
it eliminate also that bluish tint on the snow, if I take a picture in the
shadow?

I know that both of the filters are designed to do that, I would just like
some advice from the experts - which one is preferred or more usable, or
it
doesn't really matter?

Thank you.
Simon
The differences are subtle, but I'm happy w/ an 81a. An
81b might tend to make people look a little jaunticed. For snow, which is a
different deal, I'd try a UV3, or look at skylite filters and pick one out
that was most pink. Put them on a piece of white paper for comparison. Bob
Hickey www.pbase.com/bobhickey/galleries

Alan Browne wrote:
Simon wrote:

I intend to buy a filter 81A or 81B for my SLR. I want to remove a slight
bluish tint when I take pictures in a shade or on a overcast day. Which one
of the two is more useful for that purpose- what would you recommend? Would
it eliminate also that bluish tint on the snow, if I take a picture in the
shadow?

I know that both of the filters are designed to do that, I would just like
some advice from the experts - which one is preferred or more usable, or it
doesn't really matter?


They are so close together that you will likely not notice the
difference.

eg: If the target film is "daylight" (5500K), then

81A would be "correct" for a 6000K source...
81B would be "correct" for a 6300K source...
81C would be "correct" for a 7000K source... (cloudy sky)

(Hoya "Light Source Conversion Diagram", CAT 8810E)

All pretty close together. The "C" would probably be too warm in
many situations, the "A" or "B" would be sufficient.

(FWIW, I have only an 81A for shooting subjects in open shade).

Fuji's advice for Sensia and Provia film is for
an 81A to be used in day cloudy/open shade conditions.

an alternative is to always keep 81a on when outdoors and shooting
fuji and replace it with b or c in exterme conditions.


Cheers,
Alan.



--
Sander

+++ Out of cheese error +++

"Joseph Meehan" wrote:

Simon wrote:

I intend to buy a filter 81A or 81B for my SLR. I want to remove a
slight bluish tint when I take pictures in a shade or on a overcast
day. Which one of the two is more useful for that purpose- what would
you recommend? Would it eliminate also that bluish tint on the snow,
if I take a picture in the shadow?

Why not a skylight filter? That should do the job better IMO.

Galen Rowell used to keep skylight filters on his shorter lenses and 81A
filters as the standard "lens protector" on all his lenses 200mm and up.
For warming purposes I'd start with an 81A if it's going to be used on
lenses shorter than 200mm and an 81B if it's going to be used on lenses
of 200mm and up.

--
Mark Roberts
Photography and writing
www.robertstech.com

From: "Simon"

In very cloudy weather I
will probably miss 81B - maybe I'll buy it some time later. But first of
all, I have to see the results with this one.

Probably should have asked this earlier, but are you shooting slides or print
film?