'D' lens on Nikon D7100: I looked at some of the old topics regarding the difference between 'D' and 'G' lens. Major difference I noticed in through the discussion was that 'G' lens...

dandekarv Loc: Lake Forest, Ca, US

I looked at some of the old topics regarding the difference between 'D' and 'G' lens. Major difference I noticed in through the discussion was that 'G' lens does not have aperture ring and the 'G' lens has a motor for auto focus and it does not use the camera motor. The question I have is that the prime lens does not have aperture setting (aperture does not change) so does 'D' lens has the aperture ring?
And second question is can AF function will work on D7100 camera?

I am thinking of buying a 50mm AF "D" lens for my Nikon D7100

wilikioti Loc: Deep South, USA

dandekarv wrote:

I looked at some of the old topics regarding the d... (show quote)

I am using a 50mm AF D lens on my D7000 and it works fine. I would think that it would work on the D7100.

MT Shooter Loc: Montana

dandekarv wrote:

I looked at some of the old topics regarding the d... (show quote)

Aperture is controlled by the newer cameras and "D" lenses need to be set at their minimum aperture to work or you get a "FEE" error message. G lenses are automatically set at their minimum aperture so you don't have to. Either will work just fine on the D7000/D7100 bodies.
Aperture DOES change with a G lens, just not manually on the lens, only in-camera changes in Aperture priority or manual modes.

dandekarv Loc: Lake Forest, Ca, US

MT Shooter wrote:

Aperture is controlled by the newer cameras and "D" lenses need to be set at their minimum aperture to work or you get a "FEE" error message. G lenses are automatically set at their minimum aperture so you don't have to. Either will work just fine on the D7000/D7100 bodies.
Aperture DOES change with a G lens, just not manually on the lens, only in-camera changes in Aperture priority or manual modes.

I believe that was my first question, since prime lens has only one aperture does it make any difference? I think there is not min max aperture on the prime lens

dandekarv Loc: Lake Forest, Ca, US

wilikioti wrote:

I am using a 50mm AF D lens on my D7000 and it works fine. I would think that it would work on the D7100.

Thanks that brings some relief.

GoofyNewfie Loc: Kansas City

dandekarv wrote:

I believe that was my first question, since prime lens has only one aperture does it make any difference? I think there is not min max aperture on the prime lens

What lens do you have that has only one aperture???
With the D lens, you just set the aperture ring (at the back) to 16, 22, or whatever the smallest aperture is.
This one has a lock to keep it at f/22- the switch with the orange dot just in front of the aperture ring to the right of center.

MT Shooter Loc: Montana

dandekarv wrote:

I believe that was my first question, since prime lens has only one aperture does it make any difference? I think there is not min max aperture on the prime lens

Prime lenses always have a minimum AND a maximum aperture, as well as a whole range in between. There are specialty lenses with a fixed (single) aperture such as a catadioptric (mirror) lens like the 500mm F8 and similar. Suffice it to say I have never heard of ANY AF type lens with a fixed aperture outside of one mirror offering. Nikon certainly does not offer any.
I feel you are confusing aperture with focal length. Prime lenses have only one focal length, such as a 35mm prime, or a 50mm prime, they still have variable apertures though. Lenses with more than one focal length are referred to as "zoom" lenses, and also offer variable apertures regardless of their being a "D" or "G" type lens.

dandekarv Loc: Lake Forest, Ca, US

GoofyNewfie wrote:

What lens do you have that has only one aperture???
With the D lens, you just set the aperture ring (at the back) to 16, 22, or whatever the smallest aperture is.

50mm F/1.4, AF D
I think is not a zoom lens so it may have only one aperture setting 1.4

MT Shooter Loc: Montana

dandekarv wrote:

50mm F/1.4, AF D
I think is not a zoom lens so it may have only one aperture setting 1.4

Please read my last comment, you are obviously misunderstanding focal length with aperture.

dandekarv Loc: Lake Forest, Ca, US

MT Shooter wrote:

Prime lenses always have a minimum AND a maximum a... (show quote)

It did not give me another F value so I thought it has only one aperture setting. I guess I will have to manually change aperture setting with ring which I don't mind.

MT Shooter Loc: Montana

dandekarv wrote:

It did not give me another F value so I thought it has only one aperture setting. I guess I will have to manually change aperture setting with ring which I don't mind.

You shoot with a Nikon D7100, that body requires you to adjust the aperture with the camera, NOT the lens, regardless of whether that lens is a "D" or a "G" type. You simply cannot adjust the aperture on the lens and take a shot, the camera will not let you and will give you a "FEE" error message in your top LCD screen.

wilsondl2 Loc: Lincoln, Nebraska

I think that the confusion may be with many zoom lenses have variable apertures that change as you zoom out. For example Nikon's 18 to 55 mm kit lens the widest aperture changes from F/3.5 to F/5.6. Note that this lens will stop down to F/22 at any focal length. There are some zooms that have a fixed largest aperture at all focus lengths,(big bucks). With lenses without aperture rings you can find the smallest aperture (biggest number) by setting the camera in A and turn the control wheel until you it stops changing numbers. You will find that if you use any of the Auto or Program mode the camera will not use your largest aperture unless you have a very low light condition. You will need to learn what will happen with different aperture settings. You need to go to the Manual side of your camera. I like to use A because I just need to set the aperture and the camera will set the shutter speed. (Under some conditions like shooting the moon you will need to set both) Hope this is of some help. - Dave

dandekarv Loc: Lake Forest, Ca, US

MT shooter and Dave; thanks for the explanation. I see where my confusion was. It is now clear what is aperture Nd how I set it. Thanks again.

Vasant

GoofyNewfie Loc: Kansas City

wilsondl2 wrote:

I think that the confusion may be with many zoom lenses have variable apertures that change as you zoom out.....

Brilliant deduction! Sounds plausable. :thumbup:

Erik_H Loc: Denham Springs, Louisiana

MT Shooter wrote:

You shoot with a Nikon D7100, that body requires you to adjust the aperture with the camera, NOT the lens, regardless of whether that lens is a "D" or a "G" type. You simply cannot adjust the aperture on the lens and take a shot, the camera will not let you and will give you a "FEE" error message in your top LCD screen.

I don't know about the D7100, but on the D7000 there is a setting that allows you to use the aperture ring on "D" lenses rather than the command dial. It's custom menu setting f6.