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What do do with a Zeiss f1.9/180mm lens head?
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PostPosted: Mon Jul 29, 2013 8:49 pm    Post subject: What do do with a Zeiss f1.9/180mm lens head? Reply with quote
Well, I'm calling for ideas what to do with that lens head ... collect, convert, sell?







It's a special high lumen lens, most likely from a night vision system, with
adjustable aperture which also allows to completely shut the light path.

Monstrous lens, 95mm front lens diameter, ca 2 Kilo weight, 70mm rear
thread mount. Unsure if made in Jena or Oberkochen, most likely Jena.

Last edited by kds315* on Tue Jul 30, 2013 4:58 am; edited 1 time in total


PostPosted: Mon Jul 29, 2013 9:02 pm    Post subject: Re: What do do with a Zeiss f1.8/180mm lens head? Reply with quote
Got any image samples? Laughing


PostPosted: Mon Jul 29, 2013 9:34 pm    Post subject: Re: What do do with a Zeiss f1.8/180mm lens head? Reply with quote
kds315* wrote:
Well, I'm calling for ideas what to do with that lens head ... collect, convert, sell?



Donate ?!


PostPosted: Mon Jul 29, 2013 10:11 pm    Post subject: Reply with quote
first step try it out if produce crap , collection LOL, if looks nice make permanent adapter, 2kg is not much for a super fast 180mm lens.

Register distance ?


PostPosted: Mon Jul 29, 2013 10:20 pm    Post subject: Reply with quote
Convert and use. If its not too good wide open, then closing it a couple of stops will make it the same speed as a regular 200mm and will probably give better resolution. Only one way to find out!!

I'd love to have a go at converting that lens to use.

Last edited by philslizzy on Wed Jul 31, 2013 9:29 am; edited 1 time in total


PostPosted: Mon Jul 29, 2013 11:47 pm    Post subject: Reply with quote
I'd make sure it's better than a 2.8/180 Sonnar before spending any money on it. Also, as Attila says, the backfocus might be short.


PostPosted: Tue Jul 30, 2013 4:14 am    Post subject: Reply with quote
Not spending any money on it, as I have it already since many years...

Guess I go figure a way out to see how to get some shots with it and see how it performs.


PostPosted: Tue Jul 30, 2013 7:57 am    Post subject: Reply with quote
P.S.: I mentioned the options: collect, convert, sell - these are the only ones I'm willing to take into consideration.


PostPosted: Tue Jul 30, 2013 8:55 am    Post subject: Reply with quote
Interesting lens, but not compelete and with dents, collectible value is probably low.

I´d made a cradle to put the lens on a tripod and with some plastic or cardboard tubes just hold the body behind the lens to make first shots. Manufacturing a permanent mount part would be tricky, though. Because of the weight, You need a strong extension tube/mount part, preferably with tripod bush, Nikon PN-11 type.

If this is from a night vision system, the lens is possibly not very well corrected for optical flaws and the contrast may be low, but ...
on ne fait pas d'omelette sans casser des œufs.


PostPosted: Tue Jul 30, 2013 9:09 am    Post subject: Reply with quote
convert - you cannot let it go before checking it


PostPosted: Tue Jul 30, 2013 12:25 pm    Post subject: Reply with quote
Send it to me , I will try it out and sell after among to you Smile


PostPosted: Tue Jul 30, 2013 1:06 pm    Post subject: Reply with quote
Attila wrote:
Send it to me , I will try it out and sell after among to you Smile


Unfortunately not one of the mentioned options. But maybe your mechanic can make a nice mount for it?
Then you can try it out on Krisztina and I will feel honored Wink


PostPosted: Tue Jul 30, 2013 2:23 pm    Post subject: Reply with quote
I think you'll only get votes to convert, we're all curious about how this beast performs, and we wouldn't have to do any of the work!


PostPosted: Tue Jul 30, 2013 3:07 pm    Post subject: Reply with quote
If I were you, I would sell it!

Klaus


PostPosted: Tue Jul 30, 2013 3:17 pm    Post subject: Reply with quote
exaklaus wrote:
If I were you, I would sell it!

Klaus


Most likely I will, but I wonder if I should convert it first and take some pics with it?


PostPosted: Tue Jul 30, 2013 4:56 pm    Post subject: Reply with quote
kds315* wrote:
exaklaus wrote:
If I were you, I would sell it!

Klaus


Most likely I will, but I wonder if I should convert it first and take some pics with it?


You can try sell well first on fix price and if no offer, my offer can come as second. This is less expensive method for sure, probably we will poorer with test photos. If lens mounted properly and create nice pictures I think price will be multiply more than in this stage. This is not a sought after collector item due not looking good on shelf, but if works great a 180mm 1.9 lens can fetc serious price.


PostPosted: Tue Jul 30, 2013 5:43 pm    Post subject: Reply with quote
Hmm,

Do you have any idea what the coverage is ? Or the back focus ?

Do you have an Exakta Vielzweck bellows ? That should be sturdy enough to take a 2KG lens.

If I had this I would try that route first, at least for testing. The biggest problem would be back focus.


PostPosted: Tue Jul 30, 2013 7:39 pm    Post subject: Reply with quote
Yes, I will go the route and convert it, use it and then possibly sell it.


PostPosted: Wed Jul 31, 2013 7:08 pm    Post subject: Reply with quote
kds315* wrote:
Yes, I will go the route and convert it, use it and then possibly sell it.

If you have any CAD skills you could make a mount using shapeways (3d printing company) but first you need to know the flange focal distance. If you don't have any CAD skills you could just donate it to me:P (or just make the mount the good old traditional way with a lot of milling and grinding Razz)


PostPosted: Wed Jul 31, 2013 7:28 pm    Post subject: Reply with quote
I'm a trained engineer - that should answer that Very Happy

And to repeat, "donate" was none of the mentioned options Wink


PostPosted: Fri Aug 02, 2013 8:35 am    Post subject: Reply with quote
kds315* wrote:
I'm a trained engineer - that should answer that Very Happy

And to repeat, "donate" was none of the mentioned options Wink


kds315* wrote:
Well, I'm calling for ideas what to do with that lens head ... collect, convert, donate?


Razz

Well my answers: convert and show us some sample shots Smile


PostPosted: Sat Aug 17, 2013 9:51 am    Post subject: Reply with quote
Why in shock??
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