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Old Feb 19, 2012, 3:59 AM   #1
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Default Appature ring or no appature ring

Hi Folks,

I am thinking about buying sigma 150ml-500ml Sigma lense
for my Nikon D7000 but notice it says in specifications it has no appature ring. Do all Nikon lenses have appature rings and what does it mean.

Am I going the right way for lense choice. I just want a telephoto zoom
please help.
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Old Feb 19, 2012, 5:13 AM   #2
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Some lenses for Nikon bodies have aperture rings and some don't. In order to use the ones that do have aperture rings, you must lock the ring at the minimum aperture, using what is appropriately called the Minimum Aperture Lock. If a lens doesn't have an aperture ring, then you don't need to wory about the Minimum Aperture Lock slipping and allowing the aperture ring from drifting away from the minimum aperture, resulting in the camera becoming inoperable.

By all accounts, the Sigma 150-500 is a fine lens.

What do you want to shoot?
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Old Feb 19, 2012, 5:46 AM   #3
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Hi TCav,

Thankyou for quick reply. So I am understanding that having no apeture ring
on the sigma lense should not be a problem for the d7000.
There are 2 that am looking at,
the first is the sigma 120-400mm f4.5-5.6 or
the 2nd is the sigma 150-500mm f5-6.3
I guess the first would be faster but descisions desicions.

I would have liked the nikor 200-400
or the nikor 600mm but price is prohibitive.

the
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Old Feb 19, 2012, 9:55 AM   #4
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Quote:
Originally Posted by flasha View Post
... but price is prohibitive.
Welcome to the wonderful world of dSLR photography.

What do you want to photograph?
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Old Feb 19, 2012, 10:39 AM   #5
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Quote:
Originally Posted by TCav View Post
By all accounts, the Sigma 150-500 is a fine lens.
?
While unsuitable for action photography due to it's max aperture, I've been pleased with mine coupled to a D90 and a D300s.

Jehan

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Old Feb 19, 2012, 11:45 AM   #6
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I was mainly thinking of shooting birds or some sports.
So most of what I wanna shoot would be during daylight hours.
The only thing I cant decide on is which lense to get.
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Old Feb 20, 2012, 4:44 AM   #7
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Hi all,
As it turned out today I went and bought 2 lenses.
The first is the Ultrawide Sigma 8-16mm F4.5 and
the second was the telephoto Sigma 120- 400mm f4.5-5.6.

I did not go for the bigger lense 150-500mm because it was $400 more expensive
and I just thougt that slightly faster would be better at the expense of slightly longer reach.

The Ultrawide was something that I have wanted for a while.
I am realy happy now.
I would like to thank all that helped over the last couple of days.
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Old Feb 27, 2012, 9:29 AM   #8
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hmmmmm
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