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Moon by Carl Zeiss Jena 500mm f/4 mirror lens.
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PostPosted: Wed Apr 25, 2007 10:18 pm    Post subject: Moon by Carl Zeiss Jena 500mm f/4 mirror lens. Reply with quote
Yes, 500mm f/4!

Captured by István Csabai not me.



PostPosted: Thu Apr 26, 2007 8:02 am    Post subject: Reply with quote
That is a gorgeous capture!
Lens attached to telescope, or lens alone?


PostPosted: Thu Apr 26, 2007 8:04 am    Post subject: Reply with quote
Lens alone, but I am not sure I asked the owner. Hopefully he will reply soon. He has an 5,6/1000mm CZJ mirror lens too ! I asked him for sample photos hopefully he will provide this lenses are very rare and expensive too.


PostPosted: Thu Apr 26, 2007 8:43 am    Post subject: Reply with quote
Must have been a VERY clear night.
When I try this kind of shots from here, it's always a bit hazy.


PostPosted: Thu Apr 26, 2007 10:49 am    Post subject: Reply with quote
That's fantastic!


PostPosted: Thu Apr 26, 2007 11:02 am    Post subject: Reply with quote
Canon 350D,ISO 200, Carl Zeiss Jena 500mm f/4 mirror lens purely.


PostPosted: Thu Apr 26, 2007 11:06 am    Post subject: Reply with quote
Could you ask him what shutter speed and aperture he used, please?


PostPosted: Thu Apr 26, 2007 11:57 am    Post subject: Reply with quote
okay


PostPosted: Thu Apr 26, 2007 7:52 pm    Post subject: Reply with quote
great capture from a great lens. there's a 800mm vivitar solid cat on ebay here. how is it's IQ compared to this??


PostPosted: Thu Apr 26, 2007 7:55 pm    Post subject: Reply with quote
robar wrote:
great capture from a great lens. there's a 800mm vivitar solid cat on ebay here. how is it's IQ compared to this??


I don't know but I am sure that it will be REALLY hard to beat this IQ.

Man it looks entirely taken with a telescope.
It's mind-blowing!


PostPosted: Thu Apr 26, 2007 8:12 pm    Post subject: Reply with quote
Have you ever seen mirror lens with 500mm focal length with f4 max. aperture ?


PostPosted: Thu Apr 26, 2007 8:33 pm    Post subject: Reply with quote
Attila wrote:
Have you ever seen mirror lens with 500mm focal length with f4 max. aperture ?


My one is Russian made in Lytkarino and it is f/6.3
so not much darker than the Zeiss
But I doubt it can achieve the same quality.


PostPosted: Thu Apr 26, 2007 8:38 pm    Post subject: Reply with quote
I suppose your Russian is not worst as we see with many Russian lenses. But one and half f stop less in long focal length that is the big thing in my opinion.


PostPosted: Thu Apr 26, 2007 8:47 pm    Post subject: Reply with quote
Attila wrote:
I suppose your Russian is not worst as we see with many Russian lenses. But one and half f stop less in long focal length that is the big thing in my opinion.


I dont' think that a speed difference of this kind is so much important on a 500mm mirror lens, because you will always use it on a tripod and never hand-held (it's simply impossible)
So I think that the IQ is more important.


PostPosted: Thu Apr 26, 2007 8:52 pm    Post subject: Reply with quote
Yes, right. I think this is interesting as CZJ could make it others not, same thing like f/1.2 lenses contra f/1.4.


PostPosted: Thu Apr 26, 2007 10:18 pm    Post subject: Reply with quote
Orio wrote:
Attila wrote:
I suppose your Russian is not worst as we see with many Russian lenses. But one and half f stop less in long focal length that is the big thing in my opinion.


I dont' think that a speed difference of this kind is so much important on a 500mm mirror lens, because you will always use it on a tripod and never hand-held (it's simply impossible)
So I think that the IQ is more important.

i'm not so sure about not handholding a 500mm. i've seen some stellar shots from a guy using a bigma at 500mm.


PostPosted: Thu Apr 26, 2007 10:19 pm    Post subject: Reply with quote
Orio wrote:
Attila wrote:
I suppose your Russian is not worst as we see with many Russian lenses. But one and half f stop less in long focal length that is the big thing in my opinion.


I dont' think that a speed difference of this kind is so much important on a 500mm mirror lens, because you will always use it on a tripod and never hand-held (it's simply impossible)
So I think that the IQ is more important.

i'm not so sure about not handholding a 500mm. i've seen some stellar shots from a guy using a bigma at 500mm.


PostPosted: Thu Apr 26, 2007 10:21 pm    Post subject: Reply with quote
robar wrote:

i'm not so sure about not handholding a 500mm. i've seen some stellar shots from a guy using a bigma at 500mm.


Mine is so big that I would not be able to handle it and focus it at the same time. But my hands are not super big. Maybe there are also smaller lenses than mine.


PostPosted: Thu Apr 26, 2007 10:49 pm    Post subject: Reply with quote
This picture is amazing. I tried taking my first moon shot last year, before I started collecting MF lenses and before I understood my camera properly. I used a EF 100-300 USM lens and the results were very disappointing indeed. I haven't tried it since, but this picture makes me want to have another go.

Even at 300mm the moon's image was just a small spot in the centre of the frame, and of course it was way over-exposed because the stupid meter thought I was taking a shot of the black sky Wink


PostPosted: Thu Apr 26, 2007 11:00 pm    Post subject: Reply with quote
peterqd wrote:
This picture is amazing. I tried taking my first moon shot last year, before I started collecting MF lenses and before I understood my camera properly. I used a EF 100-300 USM lens and the results were very disappointing indeed. I haven't tried it since, but this picture makes me want to have another go.

Even at 300mm the moon's image was just a small spot in the centre of the frame, and of course it was way over-exposed because the stupid meter thought I was taking a shot of the black sky Wink


With such small subject, and such powerful lenses, the main problem is the movement, the tripod alone is not enough, I find that also blocking the mirror is important. As you say, the moon is small in the frame, and even the slightest movement in the camera will result in a blurry image.
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