Zeiss Cpl Filter
Gaby Zenz
The name ZEISS has been synonymous with quality down to the last detail ever since Carl Zeiss opened his optical workshop in 1846. Your photos now also benefit from this quality. Demanding photographers know that a perfect photo requires perfect conditions: the subject, of course, but primarily the camera equipment.
Crystal clear: the UV filters featuring the T* anti-reflective coating from ZEISS provide optimal protection for the front element of your lens. They also ensure absolute brilliance without altering the color rendition or exposure time.
Discover something new: the POL filters featuring the T* anti-reflective coating from ZEISS provide you with entirely new photographic insights by avoiding reflections on non-metallic surfaces. Experience a new definition of color and contrast.
Stupid question: what if I simply get rid of the (apparently) useless 40693 lens shade, and simply replace it with a 86-95mm step up adapter ring (assuming the thread on the lens is 86mm once you remove the "shade"?
A relatively inexpensive solution would be a 100 mm square resin filter with a short, 93 mm holder and (possibly) a short hood. I have a Hasselblad Compendium hood, with a 93 mm adapter for use with a CF40. The hood accepts square gelatin filters with a built-in frame. The hood itself is then set to 40 mm (almost flat), or 60 mm for use with a CFV16 digital back.
I don't use protective filters with Hasselblad lenses. I prefer to avoid crowds, sandy beaches, licking dogs and children who explore with their sticky fingers. The hood is deep enough to give adequate protection.
Thank you Ed! I get your point... although I'm using UV filters on my three other CF lenses (grandkids!). My 40mm CF is still in the mail and until I get it I won't understand how its accompanying 93/40 (40693) lens "shade" works. At this stage in my research, I would assume that I could purchase a red (51403) drop-in filter and that I could insert it inside the shade. However it seems that some or those filters are drop-in while some are threaded, so I'm still confused
I do not own the CF40, so I'm not sure how that lens is set up. The C50 come with a single retainer ring, and you drop the series 63 filter directly in the lens, and thread the retainer ring on to hold it in place. The F50 comes with a split filter holder that threads onto 86mm threads, and holds the Series 93 filters.
You can only install one series filter at a time. There is no reason you can't build a retainer ring that would hold 2 filters, but I don not know of any. If you use gels, you can put several in there. However, I do not think you can install 2 glass filters (of any type) on the CF40 without vignetting.
Point taken. Please forgive this brief moment of impatience. I regretted this remark as soon as I posted it but couldn't find a way to edit it. While photography has long been my passion, I am new to medium format and, obviously to this impressive forum.it should have occurred to me that there are comparatively few CF40mm owners.
Please notice the wide portion at the objective end of the lens. The bulging portion unscrews from the mostly cylindrical part of the lens. It is deeply recessed, and seems to serve as a lens shade as well as protection for the front element of the lens.
The thin ring at the top of the conical section seems to be removable. There is a groove which may be a joint, or simply a decorative feature. At any rate, it won't come off on my version. In this illustration, they do seem to separate.
Addendum: I read somewhere that the O93/40 is the same as the O93/50, and the rear filter thread is 86mm, which means the thread on the CF40 is 86mm (pitch may be different). However, you cannot put a 86mm filter on it because the built in petal shade extends beyond the thread. You can however use a 86mm-95mm adapter, which puts the 95mm filters outside the built in petal shade. There is a good picture at -f4-cf.htm that shows this.
Dear Tom, I am occasionally prone to "lost in translation" issues, being born in Switzerland, raised in France, Italy and West Africa and systematically uprooted. I'm still struggling to master English, while living in a Spanish-speaking culture - where sarcastic humor is viewed with suspicion. You were right to chastise my comment, although no disrespect was intended. (I realize I acted not unlike a shipwrecked sailor who sends a message in a bottle and, three days later, wonders why there are no rescue ship lining up on the horizon!). Thank you so much for taking the time to illustrate the matter I'm dealing with. It would appear that my (incoming) lens is fitted with a 93/40 shade, which the Compendium describes as having been made exclusively for the 40mm CF. It would appear the 93/50 is very similar and was supplied with the F and FE 50 mm lenses. I'm ready to bet they work the same way, possibly with a drop-in filter sandwiched somewhere in between. I hope I manage to disassemble my shade!
The long wait is over and I've finally received my 40mm Distagon... A superb piece, in pristine condition. The top glass is rather large and exposed, so I've ordered a "haze" (UV) filter for protection. Now I'm holding the lens in my hands, I understand what is referred to as "petals". The 93/40 "shade" opened easily. I have actually ordered two "drop-in" filters (UV 51411) & (RED 51403). I love the Richard Nordin Compendium, which is an indispensable source! With eBay, it's always a gamble, but I tried to hedge my bets as well as possible. I bought the (allegedly near mint) UV at the sweet price of $90 (free shipping) and the red one at $143 (including shipping) I could easily have paid double that... there's a few available from England over $235 and one of them is attractively described as "very badly scratched". Since my lens was already provided with the shade (which is expensive) I "only" spent $233 on filters... (hey, those filters are huge!). I didn't want to go over $300. Other alternative I explored was from LEE filters. After discussing the possibility of vignetting, this is what John Adler wrote:
Well, I've reached the end of my quest. Luckily the 40mm I bought already came equipped with the curiously named 93/40 (40693) "shade" (must be Swedish humor), so I didn't have to purchase one. Thanks to this forum, I discovered that it's made of two parts, which is not immediately obvious. And now I've gotten my two filters (UV and Red) I understand why they are expensive (they are really large!) and how they actually "drop" in between the two slim rings which is not fantastically practical but works. I observe those filters are not threaded. I can only use one filter at a time, of course. You can easily purchase one red filter for about $200 if you don't mind about the description ("very badly scratched") but that's what I ended up paying for my two filters (from two sellers in Japan: one excellent while the other (red one) never bothered to reply to my inquiries. His description was rather fanciful: Hasselblad 93/40 Lens Filter Holder Ring w. red Filter BandW 090 5 x MC eBay
As I correctly guessed, he was actually selling the drop in red filter I wanted (in mint condition, as well as the UV) plus one half of the "shade". I did a lot of exploring on eBay and had a hard time getting the sellers to explain if their filters were threaded or not. (I understand the "shade" would have accepted 93 mm threaded filters). OK, so it's a happy ending. Thanks for your help.
Mine also came with a Kodak-branded Series VIII hood which is probably older than the earliest V system cameras, but works fine. To use it, one unscrews the chrome retainer ring normally on the lens and screws the filter into place. A Series VIII filter can be sandwiched in-between. I also once bought a Rolleiflex with a Bay 1 to Series V(I think) adapter ring, and a Kodak Series V hood(which amazingly enough doesn't block the taking lens). It was a welcome find that I still have around here despite the camera it came on being long gone-series filters are less convenient that conventional screw-ins or bayonets, but are also useless to 99% of photographers and consequently are cheap(plus you avoid the Rolleiflex Bay 1 mark-up, which admittedly isn't as bad as the Bay 3 premium).
I've occasionally found Series VIII filters mixed into the 67mm drawer at my local camera shop. This particular shop only sells used, and most filters(things like the couple of Nippon Kogakua 52mm filters in their original leather cases I bought the other day excepted) get tossed into a repurposed card catalog file. They'll often give me the Series VIIIs when I find them since I'm probably their only customer with any use for them(not that they charge a lot for common non-name-brand filters in common sizes anyway-I've walked out with a decent sized stack of 52mms or even 72mms for a token amount before if that was all I was buying, or no additional charge if I was buying something else).
Unfortunately no, the Series VIII is around 64mm, with a thread that is almost the same as a 67mm filter. This uses a Series-93 filter, specific to Zeiss. It's somewhere between a Series IX and a Series X filter.
That's an intriguing suggestion, but my quest was limited in scope: I wanted to protect the front glass (UV) and fit - occasionally - a red filter. I was able to do so within a reasonable budget, but the "shade" allows you to use only one filter at a time. It's a bit cumbersome, but it works.
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