Andre wrote:
I checked at home and it has a 86mm thread. No common step-up (to
86mm) are made. Only the expensive Contax ones...
The HN-13 is listed as a 72mm hood at
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=1347563564
and it looks to be about the same diameter front and back. I
Is there a formula for calculating the maximum depth of the hood, given the
focal length of a lens in millimeters, it's maximum aperture diameter also
in millimeters, and the diameter of the hood in millimeters?
If there is, it would make it a lot easier to find the optimum hood for any
given
Check out the Contax Hack page ... don't have the URL handy, but a
Google search should turn it up. They have some lens hood information
there and, iirc, a way of determining optimum hood diameter/depth.
Paris, Leonard wrote:
Is there a formula for calculating the maximum depth of the hood,
Great! Thanks! I'll head that way.
Len
---
-Original Message-
From: Shel Belinkoff [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 24, 2002 9:37 AM
To: [EMAIL PROTECTED]
Subject: Re: Hood depth
Check out the Contax Hack page ... don't have the URL handy, but a
Google search should
Len, I do have it, but not at hand... It's for round or rectangular
hood. It takes into account the diameter of the filter ring, the
distance between the glass and the end of the hood, the diameter of
the hood (or both diameters for rectangular hoods), and the focal
lenght of the lens. I
Len wrote:
Is there a formula for calculating the maximum depth of the hood, given the
focal length of a lens in millimeters, it's maximum aperture diameter also
in millimeters, and the diameter of the hood in millimeters?
Len,
At http://people.smu.edu/rmonagha/mf/flare.html#homebrew you'll
Andre,
I see what you mean about suitable stepup rings to the Nikon HN-13 or Contax No. 5
hood being expensive. At
http://www.2filter.com/prices/products/rings.html#52mm%20Rings%20to%20100mm the only
step-ups from 67 to 82 or 77 to 82 are Heliopan brass rings, at $66.63!
[EMAIL PROTECTED]
Very good! Thanks Paul!
This will do very nicely. It's a good article on flare, too.
Len
---
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 24, 2002 2:38 PM
To: [EMAIL PROTECTED]
Subject: RE: Hood depth
Len wrote:
Is there a formula
That spreadsheet was contributed by our own JCO.
Thanks JC.
Len
---
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 24, 2002 2:38 PM
To: [EMAIL PROTECTED]
Subject: RE: Hood depth
Len wrote:
Is there a formula for calculating the maximum
Speaking of hood depths such, and bringing this thread
around to the Pentax 6x7 as should be :^)
I finally removed the rubber hood thingy that came on my
105mm f2.4 and found, to my delight, the bayonet access
set-up. In an experimental mode, I attached
Andre,
I see what you mean about suitable stepup rings to the Nikon HN-13
or Contax No. 5 hood being expensive. At
http://www.2filter.com/prices/products/rings.html#52mm%20Rings%20to%20100mm
the only step-ups from 67 to 82 or 77 to 82 are Heliopan brass
rings, at $66.63!
[EMAIL PROTECTED]
I wrote:
At
http://www.2filter.com/prices/products/rings.html#52mm%20Rings%20to%20100mm
the only step-ups from 67 to 82 or 77 to 82 are Heliopan brass
rings, at $66.63!
I meant to 67 to 86. Still...
Paul Franklin Stregevsky
-
This message is from the Pentax-Discuss Mail List. To
Again I ask:
Can anyone tell me whether Nikon's HN-13 72mm screw-in hood will fit any ol' 72mm
threaded filter? A seller told me It works on with the Nikon circular polarizer [for
which it was designed]. Geometrically, it's a good candidate for my 300/45 and even
with a step-up ring it's
Hi Paul ...
I have the little brother to the HN-13, the HN-12. Yes, it's designed
to use a Nikon polarizer, as it's a two-piece hood. However, I've used
,one as a regular lens hood with no problems just by leaving out the
Nikon polarizer.
Unfortunately, I don't know the thread size on the
Paul, the Nikon polarizer has 72mm thread to fit the lens BUT the
shade has a 82mm (or 86mm) thread that screws into the polarizer. I
have this beautifull hood at home, but I have to find a step-up for
it.
Andre
Again I ask:
Can anyone tell me whether Nikon's HN-13 72mm screw-in hood will
Hi,
the Contax hood is very good and very well made. On its own it is 63mm
deep, but you will also need a 67/86 step-up ring, which adds another
10mm or so to the depth. It's specifically designed for the CZ 300mm
lens, and this is precisely what I use it for. The Contax hoods all
have an 86mm
In a message dated 22/04/02 03:29:33 GMT Daylight Time, Paul writes:
I'm looking around for a screw-in metal hood for my Rikenon 300/4.5 lens
(67mm filter). My three leading candidates are the Contax No. 5 (67mm), the
Pentax RA-67, and a Nikon HN-23 (72mm, with a 67-to-72 step-up ring). A
Well, the Contax No. 5 67mm hood that I ordered from Cole's Camera had been sold. Just
as well; 86mm width is awfully imposing and inconvenient.
I misspoke when I said I was considering the Nikon HN-23. I meant to write HN-13. That
does fit a 72mm filter ring, right? And it's plenty long? One
Series 1 on it, if you
still have it?
I`ll take 3, if you`re selling any :)
Steve Larson
Redondo Beach, California
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, April 22, 2002 7:05 AM
Subject: Re: Hood depth
Peter wrote:
When I had my 135mm F2.3 S1 all
I`ve been looking for one of those VS1 90-180 hoods that say
Vivitar Series 1 on it. I picked up a 72mm Vivitar hood on ebay
that`s about 1 and 3/8' total length, that works well, but I still
want one (actually three) that say Vivitar Series 1 on it. How
deep is the one that says Vivitar
Hi Paul ...
The MH-RA 67 is a scosh less than 2.5 inches deep. The Nikon HN-23 is
but 1.5 inches deep, and it does not have a 72mm thread - it's 62mm.
This might be the perfect hood for your needs:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=1346667112
Paul F. Stregevsky wrote:
How
How deep is the MH-RA67 metal screw-in lens hood?
I'm looking around for a screw-in metal hood for my Rikenon 300/4.5 lens
(67mm filter). My three leading candidates are the Contax No. 5 (67mm), the
Pentax RA-67, and a Nikon HN-23 (72mm, with a 67-to-72 step-up ring). A
seller has told me that
Shel wrote:
This might be the perfect hood for your needs:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=1346667112
I saw that, but it doesn't seem optimized for a long telephoto. Wouldn't it
be too short to offer real glare protection on a 300?
Paul Franklin Stregevsky
-
This message is
23 matches
Mail list logo
