sigma 10-20

[Birdsnapper]

Jamie, try www.photozone.de for a review (a good site for all lens) or try Googling 'fredmiranda' for user comments. Better still, just get one - you'll see the world in a different way - literally.

[woolleson]

Great little lens, love mine.

Have a look through this lot..........

http://www.trekearth.com/photos.php?cat=lens&id=3327
http://www.lumis.com/tag/Sigma_10-20/page1/
http://www.pbase.com/cameras/sigma/10-20_4-56_ex_dc_hsm
http://www.pbase.com/jamisonwexlerphoto/sigma1020test

Go on get one, you know you want one !!!!

I paid £250 new from HK, shop around might get it cheaper

Jason

[jamieZ740]

thanks for the linkage, i think ill get one tomorrow, if i shop around i'll have to wait. and i don't want to.
one more question..why will i have to pay an extra £30 for the nikon fit where Canon, pentax and the other one, are all 30 less?

[Don Hoey]

Originally Posted by jamieZ740

one more question..why will i have to pay an extra £30 for the nikon fit where Canon, pentax and the other one, are all 30 less?

I have not checked out prices but it could be that in the Nikon mount the aperture is by mechanical rather than electronic link.

Before you knock Nikon for this, I am able because of that mechanical link, able to do stuff that cannot be done with lenses that have purely electronic aperture links.

Don

[woolleson]

Not sure on that one.

I got mine from here

http://cgi.ebay.co.uk/Sigma-10-20mm-...QQcmdZViewItem

But of course canon fit. Took about a week to come and no import tax. But that is not gaurented !!!

It is a very good lens but takes some getting used to, the image I took of the house at the weekend was no more than 2ft away !!!! Great lens to play with and as you have seen, very good images.

Just to throw a spanner in the works, the 12 - 24 is also a top lens see here

http://www.fredmiranda.com/reviews/s...&cat=37&page=1

Look around Freds site, they have good reviews and some cracking photo's

Jason

[robski]

Originally Posted by Don Hoey

I am able because of that mechanical link, able to do stuff that cannot be done with lenses that have purely electronic aperture links.

Don

Any chance of expanding on this Don ?

[Don Hoey]

Rob,

I guess the mechanical link part should be qualified in my case to include all lenses with an aperture ring. For those not familiar with the Nikon range then I should say that there are two lens types within that range. Normal ( ie old style with a seperate aperture control ) and G type.

G type do not have an aperture ring, and apertures are set from the camera command dial, so I guess that makes them similar to the current Pentax range. Pentax still retains mechanical diaphragm linkage hence its compatability with a shed load of older lenses.

So excluding my one Nikon G type lens ( 12-24) I can mount any of my lenses M/F or A/F on my ancient bellows and have full aperture viewing. I can also reverse any of those lenses and again have full aperture viewing. My bellows is auto but in the Nikon range you can have massive extension through bellows extensions, in which case lens aperture control and camera triggering, is via a twin release.

In the Nikon system I am not aware of any means ( accessory ) of controlling the aperture of G type lenses once the link to the body is broken, so the mechanical link to aperture within the lens, is system compatability only. From a bit of a net trawl of images of them, it appears that the current range of Pentax lenses are the same as Nikon G type in that aperture is controlled through electronic connection to the camera body. No doubt Duncan or Ian will correct me here.

As far as I can see Canon has gone the all electronic route so requires contact between lens and body electrical contacts to control aperture and lens stop down. I notice Novoflex do an adaptor for maintaining the link on a reversed lens for Canon but that is listed as being 299 Euro's, also auto bellows units at 549 Euro's. Canon may do similar but I have been unable to find any info.

As always I stand to be corrected.

Don

[miketoll]

Canon do not make a bellows anymore so it is Novoflex or nothing.

[Don Hoey]

I did not realise that it was such common practice to have the lens controlled by camera body electronics when I started my Manual Macro on the Cheap thread.

I feel a bit of a twit now, as although its easy for me, its obviously not so for others.

Don

[Don Hoey]

Well done on the lens Jamie. I see it didn't take long for Al to give it a go.

Don