Aperture control (Page 2): Yes and no. You can still control the aperture, within limits. You can also spend $2,000 for an f/2.8 lens if it's that important to you. You can also get...

jerryc41 Loc: Catskill Mts of NY

Stanfan wrote:

...it's controlled by the zoom.

Yes and no. You can still control the aperture, within limits. You can also spend $2,000 for an f/2.8 lens if it's that important to you. You can also get one used for less. Try KEH.

leftj Loc: Texas

Stanfan wrote:

As a walk around lens I use a Nikon 18-70mm Which was part of my D70 kit. On my other lenses 50mm & 85mm,
I can choose the aperture I want but on the 18-70 it's controlled by the zoom. How can I choose the aperture
and still have the use of the zoom on my D-7100?

Don't you mean the maximum aperture is controlled by the zoom? I'm not familiar with Nikon but the idea that "the aperature" is controlled by the zoom is very suspect to me.

camerapapi Loc: Miami, Fl.

In the first place, the 18-70 proved not to be a cheap lens. A kit lens tends to bear that classification but there are excellent kit lenses that do their part when we do ours. Case in point the Nikon 18-55 and the 18-140.
In the 18-70 Nikon lens the zoom does not control the aperture, it is the camera. You simply set the camera to aperture priority and move a dial to select the aperture you want.
I have to assume that your 50 and 85mm lenses are manual lenses.

imagemeister Loc: mid east Florida

Gene51 wrote:

On the 18-70, which is a very good lens by any sta... (show quote)

You forgot the Sigma 17-70 2.8-4 C ........

ppage Loc: Pittsburg, (San Francisco area)

Apertures change with zoom lenses getting smaller as they zoom in to your target but the aperture is not controlled by the zoom. The aperture on an interchangeable lens is controlled by the lens. It is an aperture at focal length limitation. When you are zoomed all the way in you can still control your aperture in that you can go higher, you just can't go any lower. When zoomed all the way out, you have the most control over the apertures from the lowest the lens will do to the highest, probably 22

dandi Loc: near Seattle, WA

Stanfan wrote:

As a walk around lens I use a Nikon 18-70mm Which was part of my D70 kit. On my other lenses 50mm & 85mm,
I can choose the aperture I want but on the 18-70 it's controlled by the zoom. How can I choose the aperture
and still have the use of the zoom on my D-7100?

Use and enjoy you zoom with variable aperture unless you want to spend 15 times more or so for constant aperture zoom. I have this lens for several years and like using it. You don’t need to shoot at 18mm wide open (f3.5). Choose f-stop 5.6 or 8, even 4.5 if you need and the aperture will not change.

joer Loc: Colorado/Illinois

Stanfan wrote:

As a walk around lens I use a Nikon 18-70mm Which was part of my D70 kit. On my other lenses 50mm & 85mm,
I can choose the aperture I want but on the 18-70 it's controlled by the zoom. How can I choose the aperture
and still have the use of the zoom on my D-7100?

Just raise the aperture beyond the max (largest opening) and set ISO to auto maxed at something you are comfortable with. You can also control the shutter speed this way or both if you like.