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FlemmingS
5th July 2011, 11:53 AM
I saw it lens for sale for approx 70 £ in a local paper
http://i.dbastatic.dk/images/3/47//75123947_26062011193436_6456_3.jpg
http://i.dbastatic.dk/images/3/47//75123947_26062011193444_6220_3.jpg

It is almost too cheap to be true, so I searched the internet but found nothing about this lens.
I guess it is actually a 500mm with a 35 mm focal length of 1000 mm ?
And F:3.5 aperture?

This evening I will call the seller and see if I can get to see it.

Does anybody here know about this particular Sigma product ?

Nick Temple-Fry
5th July 2011, 12:10 PM
If you search on sigma 1000mm 13.5 you will get some results.

Sorry but it's not a 3.5 lens - it even says 13.5 on the pictures

Nick

FlemmingS
5th July 2011, 12:13 PM
Hi Nick

Of course you're right - it was almost too god to be true ! :o

I think I will try iy out anyhow, the seller lives quite near me

Nick Temple-Fry
5th July 2011, 12:22 PM
Hi Nick

Of course you're right - it was almost too god to be true ! :o

I think I will try iy out anyhow, the seller lives quite near me

Well look on the bright side (and you'll need to to get an image with f13.5) if it really was an f3.5 the lens would be about a foot in diameter, now that would be awesome but maybe impratical.

Nick

Ian
5th July 2011, 12:26 PM
Absolutely - try it first! I wouldn't use that under about 1/2000th. f/13.5 is also well into diffraction softening territory.

But please do post some shots! :)

Ian

FlemmingS
5th July 2011, 12:27 PM
Well look on the bright side (and you'll need to to get an image with f13.5) if it really was an f3.5 the lens would be about a foot in diameter, now that would be awesome but maybe impratical.

Nick

Yes I will need a lot of light but I never go to the beach unless the sun is shining *yes

I'll post pictures if I buy it

Xpres
5th July 2011, 05:43 PM
I have one of these and it's not at all bad on a film camera if you use it carefully. The viewfinder image is, of course, very dim.
I found it next to useless on a 4/3 body, although useable with an EP2 because of the EV finder. Not worth the hassle though really. Although it says f13.5 its actually dimmer which doesn't help with the 4/3 sensor.
But do try it out for some fun, you'll get your money back when it comes to selling.

FlemmingS
6th July 2011, 06:22 AM
I have one of these and it's not at all bad on a film camera if you use it carefully. The viewfinder image is, of course, very dim.
I found it next to useless on a 4/3 body, although useable with an EP2 because of the EV finder. Not worth the hassle though really. Although it says f13.5 its actually dimmer which doesn't help with the 4/3 sensor.
But do try it out for some fun, you'll get your money back when it comes to selling.

Thank you very much for sharing your experinces and advice :)
I was thinking likewise regarding the very limitited usefullness due to the extreme aperture.
I am meeting with the seller this evening and will try some handheld shots before I decide.

But another thing:
Have you tried using it by night on a tri-pod and using Live-view (for instance shooting the moon) ?
This could be very interesting.

Also I have been looking at reflex lenses, it seems Walliflex is selling some very affordable 500 and 800 mm lenses (T2 adapters).
I guess they produce quite soft images with a lot of cromatic aberrations etc.
But then again:
The built-in image stabilisation of the E-camera is a clear advantage and they might actually be fun to use ?

'walimex pro 500/6,3 DX '
http://www.photogadget.dk/8906-thickbox/walimex-pro-500-63-DX-.jpg

'walimex pro 800/8,0 DX'
http://www.photogadget.dk/8905-thickbox/walimex-pro-800-80-DX-.jpg

Tordan58
6th July 2011, 07:46 AM
Hi Flemming,

Regarding the 1000 mm F13.5: what application area did you have in mind? Wildlife/bird photography?

In addition to what others have written I would like to share my view since I recently mounted a spotting scope on a DSLR body, hence turning it into a 1500mm F12.8 with narrow angle of view (1.5 degrees or so).
- F13.5 will produce a dark image in the viewfinder and it will be difficult to focus through the viewfinder and sine the DOF is shallow there is a risk of poor yield.
- I would definitely recommend using a tripod to eliminate shake blur.
- Handheld: Weight is 1kg according to spec so it is feasible. IS may help a bit but you will need shutter times shorter than 1/1000s for handheld shooting. In sunny conditions (EV15) this is achievable with ISO 800, but in cloudy conditions (EV13) handheld will be a challenge. A monopod or other improvised support will help.
- Diffraction could be noticeable and produce soft images.

But at £70 is sounds like a good deal.

/Tord

FlemmingS
6th July 2011, 08:18 AM
Hi Tordan

Thank you very much for your very useful posting.

I hope it can be used like a spotting scope on a sturdy tripod, mostly wildlife and stationary birds, and hopefully for shooting the moon.

I am fully aware that the view finder will be extremely dim but I hope that live-view will be useful, especially using the magnification for fine tuning focus.

I'll post pictures if I decide to buy the thing *chr

Lord Minty
6th July 2011, 08:42 AM
The Wallimex looks like the generic Vivitar/Hanimex/Centon 500mm f8...

David M
6th July 2011, 09:28 AM
The Wallimex looks like the generic Vivitar/Hanimex/Centon 500mm f8...

add Phoenix/Samyang and a few more I've forgotten to the list;

http://www.samyang.pl/category,5,lenses

Although their 35mm f/1.4 and 85mm f/1.4 look interesting

Xpres
6th July 2011, 10:42 AM
I haven't tried shooting the moon with the sigma. I'd imagine a huge effort would be needed to keep the lens stable while photographing something so far away with such a dim lens. I suspect the subject would also exaggerate any diffraction induced softness so I wouldn't have high hopes of success. Might be worth a try though.

As for other mirrors, I'd steer clear of the Korean versions of whatever vintage. Best value are the Tamron adaptalls, both 350 and 500. I you have more to spend then a Contax/yashica will serve well, as will one of the russians - I can't remember which at the moment but it's well reputed. google and see.

David M
6th July 2011, 10:13 PM
As for other mirrors, I'd steer clear of the Korean versions of whatever vintage. Best value are the Tamron adaptalls, both 350 and 500. I you have more to spend then a Contax/yashica will serve well, as will one of the russians - I can't remember which at the moment but it's well reputed. google and see.

Had the Tamron 500, didn't keep it long.

The biggest problem with most mirrors is they're not heavy enough to make a good door stop. And I've yet to see one that's close to it's quoted aperture.

FlemmingS
7th July 2011, 07:34 AM
Well I did buy the thingie yesterday.
Decent build quality for the price (60£), minimum focussing distance 5 meters.
I'll post some photos when I have tried it in sunny weather.
But I agree, it is a novelty but could be quite fun to play with. and it is a little light for a door stopper

Tordan58
7th July 2011, 08:35 AM
Looking foward to see some samples.

Wheater forecast for Malmö 20 km from where you are is sunny conditions starting at 16:00 today :) followed by rain starting tomorrow :(

/Tord

FlemmingS
8th July 2011, 04:18 PM
I took some photos at the Zoo yesterday using the Sigma handheld. It was extremely challenging and actually a joy !
It was a nice challenge being forced to go manual and try to get the best out of this beast.
Focussing is very hard due to F:13.5 Aperture and very shallow DOF, the kit is almost too light for efficent control handheld.
All too often the subject moved out of frame before I could focus and shoot.
The photo's are NOT intended for 'looking for perfection thread'. they are soft , neither very well composed or focussed and should not be viewed in more than 1024*768 pixels.
I look forward to see what it can do a sunny day on a tripod, using Pen EP-1 with ISO 3200 etc. Will probably just be an interesting novelty for casual photohraphy rather than a serious tool.:)

Settings: 1/1000 second shutter, ISO800 - 1600. Noise control High
Distance to object is a very rough estimate.

At approx 30 meters
http://i296.photobucket.com/albums/mm200/fsorensen/Sigma%201000%20mm/P7077572.jpg

The next two is 50-70 meters
http://i296.photobucket.com/albums/mm200/fsorensen/Sigma%201000%20mm/P7077573.jpg
http://i296.photobucket.com/albums/mm200/fsorensen/Sigma%201000%20mm/P7077577.jpg


Probably 15-18 meters

http://i296.photobucket.com/albums/mm200/fsorensen/Sigma%201000%20mm/P7077475.jpg

Very large banner at more than 100 meters
http://i296.photobucket.com/albums/mm200/fsorensen/Sigma%201000%20mm/P7077480.jpg

Bird portrait's at approx 7-8 meters

http://i296.photobucket.com/albums/mm200/fsorensen/Sigma%201000%20mm/P7077590.jpg
http://i296.photobucket.com/albums/mm200/fsorensen/Sigma%201000%20mm/P7077557.jpg
http://i296.photobucket.com/albums/mm200/fsorensen/Sigma%201000%20mm/P7077555.jpg
http://i296.photobucket.com/albums/mm200/fsorensen/Sigma%201000%20mm/P7077463.jpg