Hood For Zeiss 21mm f/4.5 Biogon

There is a dedicated hood by Zeiss for the 25 & 21mm lenses.

Edit: My bad, I swear that link wasn't there when I posted this. Thought you'd got the ZM21/4.5
 
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Possibly "wjlapier" is talking of the 1950's Carl Zeiss 21mm Biogon for Zeiss Ikon Contax RF's.

If so there is no official Zeiss Ikon produced lens hood that I know of for the 21mm Biogon. However to make things interesting, typically Zeiss by the way, the same lens in Contarex mount has the option of a bayonet mount square lenshood.

The best bet if you do have one of the 1950's 21mm Biogons is to search Ebay for "40.5mm" lens hoods, or search for the sellers "heavystar" and "americaneagle_camera" who both sell appropriate sized hoods. Here are a link to two (identical?) items being offered by these two different sellers;

New Metal 40.5mm Screw-in Wide angle Lens Hood (heavystar)
http://cgi.ebay.com/New-Metal-40-5m...ryZ78999QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

40.5MM WIDE ANGLE METAL HOOD (americaneagle_camera)
http://cgi.ebay.com/40-5MM-WIDE-ANG...ryZ78999QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
 
Don Hutton said:
The hood made for the 21mm 2.8 also fits the 21mm 4.5. It is the recommended hoos for he lens and seems to work perfectly.
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The current Carl Zeiss 21mm lens hood made for the current ZM-Mount Biogon f2.8/21mm may in fact fit the recently introduced ZM-Mount C Biogon f4.5/21mm lens but it most certainly will NOT fit the original 1950's Contax mount Carl Zeiss Biogon f4.5/21mm for Contax RF's.
 
Sorry folks! I should have mentioned this is the Contax mount version of the lens--50's as some have labelled it! Thanx for the info.

I have a Walz hood for my 50 1.4. Whatya think about the Walz hood inthe link I provided? Too big? Vignet?
 
I have never seen a dedicated hood for the Contax 21/4.5. Most people use a deep ring on it. The problem is the aperture ring! Most ring makes an already illegible aperture indicator completly invisible.
Last year I found a hood that looked like it could fit. It was one of the japanese made ones (found it in Tokyo). It does require further surgery to make the f-stops visible. I haven't really done anything to it yet as I have mainly been shooting with the new M-version.
The old Biogon needs a steep angle as the front element is right out there. It is very easy to get vignetting.
 
I've always used a 40.5-43mm step-up ring on it in place of a hood. To solve the illegible aperture reading, a put a dab of white paint on the horrifically dark indicator line. Most of the time I shoot it wide open anyway.
 
Thanx for the feedback. I'm gonna try the heavystar hood and also a stepup ring to 43mm. The stepup might help with using my black and white filters.
 
>>The stepup might help with using my black and white filters.<<

Be careful. There's a strong chance of vignetting ... with very pronounced rounded corners due to the remarkable depth of field.

Zeiss made some original 40.5mm filters that are extremely thin. I have a yellow and regular clear one.
 
VinceC said:
>>The stepup might help with using my black and white filters.<<

Be careful. There's a strong chance of vignetting ... with very pronounced rounded corners due to the remarkable depth of field.

Zeiss made some original 40.5mm filters that are extremely thin. I have a yellow and regular clear one.
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I have a 40.5 orange Zeiss coming I bought on ebay. I'm only really interested in the effect of orange and red with B+W. I'll probably scrap the idea of using the 43s because of the vignetting--I'll see how the hood works and let you know.

Interestingly, I bought an old B+W ( the company ) 43mm filter and the thread pitch didn't agree with my 5cm 1.4. I hope the new stuff will fit on the 21.
 
I've been using the round hood made for the 25/2.8. It works perfectly without vignetting and is more compact then the square hood.
 
I bought some 40.5mm vented hoods on eBay... thought they were Voiglander but they don't say that on them. They are vented hoods and sound like the right size for the Biogon but I don't know about vignetting with these. I have no idea how wide a lens with which they are intended to be used... anyone?
 
Here is a pic of the hood and step-up ring I purchased from heavystar.

hoodpic.jpg


When I get a chance to go out shooting and get my slides back I'll report back findings about vignetting. One thing I did notice is that I can't screw on my Walz filters to the step-up ring all the way. Seems the thread pitch is different on the 43mm side of the step-up than on my 5cm 1.4 ( which the Walz work just fine with ). The step-up did screw all the way into the filter ring of the Zeiss 21.
 
f2eyelevel said:
I own and use a Carl Zeiss 21/4.5 Biogon, the same as yours.

The hood you pictured on the right photo will "vignette" intensively with the 21/4.5 - useless and film waster, unless you want your picture to have a nice "shot from inside the pipe-line" look.

The step-up ring will work fine as a "hood" without vignetting, although the only benefit will reside in protection for the lens front rim.

If you screw a 43mm filter on this 40.5mm-43mm step-up, you'll got major "vignetting" as well.

If you want to use a filter on the 21/4.5 Biogon, use a 40.5mm filter with no hood. Even a regular Hoya or B+W filter, with a barrel thicker than on the slim vintage Zeiss filters mentioned by Vince, will work flawlessly provided that you use the filter and nothing else.

My current hood for the 21/4.5 Biogon (to be used without filter between the lens and the hood) is this one :

http://cgi.ebay.fr/40-5MM-WIDE-ANGLE-METAL-HOOD-NEW_W0QQitemZ150222363331

It works very well with no "vignetting" visible even at close-distance and f:16. But it has to be used without any filter.
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Thanx F2... for the heads up on the bigger hood. I guess it goes in the desk with all the other useless stuff I buy! I do have two Zeiss 40.5mm filters for when I shoot black and white. I purchased an orange one recently, and then a red one the other day. I'm glad to hear from another user--appreciate the link to the other hood!

Bill
 
Not sure why you ended up w/the longer 43mm hood when, as akalai pointed out in post #3, heavystar sells a 40.5mm specifically for wides (same appearance, perhaps same factory, as the americaneagle product):

http://cgi.ebay.com/New-Metal-40-5mm-Screw-in-Wide-angle-Lens-Hood-Nikon-S_W0QQitemZ130203805118


However, even this shallower hood could still produce vignetting on the 21/4.5. I use it for my 35/2.8 Biogon & 35/3.5 Planar (both Contax RF mount), so you might be better off just using the 40.5mm-43mm step-up ring as a "hood" (per VinceC's suggestion).

wjlapier said:
Thanx F2... for the heads up on the bigger hood. I guess it goes in the desk with all the other useless stuff I buy! I do have two Zeiss 40.5mm filters for when I shoot black and white. I purchased an orange one recently, and then a red one the other day. I'm glad to hear from another user--appreciate the link to the other hood!

Bill
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Maybe I got sent the wrong hood. It does have the W stamped on the side next to 40.5mm. Oh well, I'll have to contact them and see what happened. I do believe both hoods from different vendors are the same--S&W product. I just purchased the other vendor's hood for a bit cheaper so we'll see.
 
f2eyelevel said:
Bill : get the "W" hood from "americaneagle_camera" (best price) and use it without fear on your 21/4.5 Biogon. No problems whatsoever as far as you don't slip a filter between the hood and the lens front rim.
And seeing the aperture index with this hood is no problem, either.

And yes, "heavystar" and "americaneagle_camera" both sell the same "S&W" Chinese hoods.
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I went with the americaneagle_camera hood. BTW, would you know what lens cap would work with that hood?

I wonder if Walz ever made a hood for the Zeiss? I like the Walz hood I have for the 5cm. And there seem to be many others out there.
 
Well, I've never tested any longer hoods on the 35/2.8, let alone the 21/4.5, so I'll have to take your word for it. The point of my post was to agree w/you that he clearly got the wrong hood for the 21/4.5.

f2eyelevel said:
No it doesn't.

The hood sent to Bill would be a good match for the 35/2.8 Biogon. "Heavystar" sells different kind of wide-angle hoods.

The shallower "W" hood is of no use on a 35/2.8 Biogon (too short, to shallow, way too far from the lens FOV perimeter).

Guess what ? A regular standard 40.5mm hood designed for 50mm lenses works super on the 35/2.8 Biogon. And no need to get a vented one since you don't compose using the internal camera viewfinder but an external one. That said, vented ones aren't more expensive.

The new generation of Chinese knock-off hoods are a big improvement in design and built quality over the first "S&W" batch.

Example :

http://cgi.ebay.fr/40-5mm-Vented-Tilted-Metal-Lens-Hood-Voigtlander-Nikon_W0QQitemZ130204778772

They're not tapered any longer but one-piece aluminum forged. Perfect copy of the Leitz 12585 one, which fits both the 50/2 and 35/2 Summicrons. Exists in 39, 40.5, 43 and 46. This is what I use on my Biogon 35/2.8.

As for hoods, the purpose is to get efficient protection against oblique light rays hitting the lens front element and causing flare. So, the target is to get a hood that "follows" the lens field of view the closest, without intruding into it.

Bill : get the "W" hood from "americaneagle_camera" (best price) and use it without fear on your 21/4.5 Biogon. No problems whatsoever as far as you don't slip a filter between the hood and the lens front rim.
And seeing the aperture index with this hood is no problem, either.

And yes, "heavystar" and "americaneagle_camera" both sell the same "S&W" Chinese hoods.
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Walz & Hoya made vented 40.5mm hoods for the 50/1.5 & 50/2 Sonnars. They're usually marked "For Sonnar" on the outside rim. These are exactly the same design as the 39mm hoods they made for the 50/2 Summicron (marked "For Summicron") & the 43mm hoods for the 50/1.4 Nikkor-S (marked, you guessed it, "For Nikkor f/1.4").

I don't believe they ever made hoods for the wide angle Zeiss lenses.

wjlapier said:
I went with the americaneagle_camera hood. BTW, would you know what lens cap would work with that hood?

I wonder if Walz ever made a hood for the Zeiss? I like the Walz hood I have for the 5cm. And there seem to be many others out there.
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