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Sigma lens info needed


tomcat e2
9 6.2k 15 United Kingdom
22 Jan 2006 6:54AM
I think one of my questions is hidden somewhere in the Forums but as sure as hell I can't find it
Q1...As a lens to slot in between a 17-35 & a 70-300 which of the following would be appropriate
Sigma 28-105 f/2.8-4
Sigma 28-135 f/3.8-5.6 Aspherical

Q2...Sigma converter for 70-300 APO DG macro
1.4x
2.0x
1.4 EX DG

All of the above are on the EPZ shop site

Cheers

Adrian

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theorderingone 10 2.4k United Kingdom
22 Jan 2006 7:14AM
Q1 - Any of the two lenses would be appropriate, I suppose it depends whether you need the extra length, ot the wider aperture.

Q2 - I wouldn't recommend using a teleconverter with that lens at all.

With the 1.4x your max aperture at the long end will be f/8
With the 2x your max aperture at the lon end will be f/11

Hope this helps.
tepot 10 4.4k United Kingdom
22 Jan 2006 7:50AM

Quote:I think one of my questions is hidden somewhere in the Forums but as sure as hell I can't find it


i find the forun search function not nearly as good as it used to be, and while i'm griping, the search function in the readers gallery still limits the results to about 20 still.
cambirder 10 7.2k England
22 Jan 2006 7:56AM
Q1. Neither, get a canon 50mm f1.8, you don't need another zoom between the other 2, just use your legs. It's cheeper and image quality is vastly superior in everyway.

Q2. Can't recommend any to go with the 70-300, you will strugle with having to use MF, and loss of quality will be significant.
Mark_Readman 9 922
22 Jan 2006 7:59AM
Ill second that ! a bit of shoe zooming, the 50mm is well worth the hassle of no zoom, so sharp and so fast
nice to see someone on here knows what they are talking about
theorderingone 10 2.4k United Kingdom
22 Jan 2006 8:26AM

Quote:nice to see someone on here knows what they are talking about


Please take a look at my portfolio, theres plenty of shoe zooming going on there! Smile
tomcat e2
9 6.2k 15 United Kingdom
22 Jan 2006 8:36AM

Quote:Q1. Neither, get a canon 50mm f1.8, you don't need another zoom between the other 2, just use your legs. It's cheeper and image quality is vastly superior in everyway.


Thanks all for the info...
Looks like it's going to be the 50mm f1.8
Wonder if the EPZ shop has them in stock?

Adrian
IanA 11 3.0k 12 England
22 Jan 2006 8:45AM
Q2. None. They don't fit!

Wink)
Mark_Readman 9 922
22 Jan 2006 8:47AM
I would recomened a new one because if some burk leaves the end cap off they can attract a lot of dust that gets trapped inside, so caps on at all times when not in use and it will last years and years!
cambirder 10 7.2k England
22 Jan 2006 8:49AM
Should have no problem getting one, but if you can try and lay your hands on the older Mk 1. Optically the same, but better build and better MF ring. Second hand Mk 1's are more expensive than new Mk2's (around 100)

This one on e bay finishing in just over an hour.
tomcat e2
9 6.2k 15 United Kingdom
22 Jan 2006 10:26AM
Would you please clarify something for me Ian
On a previous thread you stated

Quote:Many of Sigma's lenses don't work properly on converters other than their own. Having said that, I have a 120-300 with an EF11 1.4x on and it works fine on a 300D and 1D!

Is it the particular lens I have that is the problem ?

Cheers
Adrian
IanA 11 3.0k 12 England
22 Jan 2006 10:40AM
Adrian,

Yes, your lens is an APO 70-300 which is not on Sigma's list of compatible lenses . The converters will not physically fit on the lens.

Hope it helps.

Ian
tomcat e2
9 6.2k 15 United Kingdom
22 Jan 2006 11:01AM
Thanks for the info Ian....It was only a thought...

Adrian
tepot 10 4.4k United Kingdom
22 Jan 2006 4:33PM
i am using a Tamron 2X converter with the siggy 70-200 APO if that helps?
Marlin_owner 9 658 United Kingdom
22 Jan 2006 11:28PM
Q1. I'd go for the 28-105 because of the extra stops. Better in low light & more control.

Q2. None will fit. I have a x2 and a 70-300mm. At 70mm the back of the lens hits the front of the converter. Other than this you will only get manual focus.

If you want a longer lens, you'll need to buy one.

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