Question about Quantaray 28-90mm f/3.5-5.6 for Pentax

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Adjusting the f stop

Just a quick question about the Nikon N75 and the Quantaray 28-90mm f/3.5 - 5.6 lens. How do I adjust the aperture setting on it. it keeps giving me a FEE readout.

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Re: Adjusting the f stop

Try to do this: set your camera in auto-mode ("A" in the dial) and the lens in the smallest aperture number, i.e., f16 or f22. This generally works.

Posted on Jun 28, 2009

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Re: Adjusting the f stop

Lock the aperture in F 22. This will get rid of FEE. Now control the aperture settings from the body ( control infront of shutter release )

Posted on Aug 25, 2007

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Hello, I own a Quantaray 28-90 MM zoom Macro lens. I would like to know its equivalent Nikon lens, which would be one of the following: 1) D or G type Nikkor 2) CPU Nikkor lens other than D...

This Quantaray lens is similar to a Nikon D-type lens in that it has an aperture ring. However, Nikon D- and G-type lenses communicate subject distance information to the camera using a proprietary protocol. Third-party manufacturers have to reverse-engineer the protocol, and they don't always get it right.

What this means for non-flash photography is that this lens works fine, with only minor exposure differences since Nikon's Matrix metering uses the subject distance information.

For flash photography, subject distance information is critical. My advice is to try it as D-type lens and look at the results. If they look good, fine. If they don't, try it as a non-D- and non-G-type lens (the second choice in your list).

The above assumes you have the Nkon-mount version of the Quantaray lens.

Jan 26, 2015 | Quantaray Camera Lenses

1 Answer

I have a Quantaray 28-200mm AF zoom lens Nikon, I use Nikon D80, are they compatible?

Turn the aperture ring on the lens to its smallest setting (largest f/number). You can control the aperture from the camera body, the same was as with a lens without an aperture ring.

Jul 14, 2014 | Quantaray 28-90mm F3.5-5.6 Autofocus Zoom...

1 Answer

Quantaray lense wont work on nikon D50

David -

The lowest setting is the highest number; f22 is lower than f4. It's little counter-intuitive, but the lowest setting means the least amount of light - or the smallest aperture opening - not the numerical "f" value of the opening.

Simply twist the aperture ring until the highest value "f" number is selected. Many lenses have a small tab or latch to lock them in this position - if yours does, you can use it to prevent this from happening again. You would use a command dial on most camera bodies to electronically change the aperture opening.

Good luck!

May 16, 2012 | Quantaray AF 70-300mm f/4.0-5.6 High Speed...

1 Answer

I have the Quantaray 70-300 macro. When I put on my D50, I get an error message "fEE" on the display.

Turn the aperture ring on the lens to its smallest setting (largest f/number). You can control the aperture from the camera the same way you do it on lenses without an aperture ring.

Jun 10, 2011 | Quantaray 70300mm f456 AF DI for Nikon

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Will the Quanta 28-200 for the Nikon n75 work on the Nikon D5000?

Yes and no. I assume the lens is of more or less the same vintage as the N75? If so, the lens will fit onto the D5000. All of the camera's exposure and metering modes will work properly. However the lens lacks an interal focus motor and thus will not autofocus on the D5000. You can focus manually, and the green focus indicator in the viewfinder will continue to work.

Apr 22, 2010 | Quantaray 28-200mm f/3.8-5.6 for Canon AF

1 Answer

Aperture wont adjust on my canon rebel xt

If it's an older lens, for EOS film cameras, Quantaray might upgrade it free - contact your local Ritz Camera store ( it's imported by Ritz ) or find a repair center for Quantaray online.

Nov 18, 2008 | Quantaray AF 70-300mm f/4.0-5.6 High Speed...

1 Answer

Aperature ring

Hi, Is the aperture in max or min ?
Remove the lens. Try pushing the stop down lever and look through the lens if the aperture changes.
Look at this pic if you wonder what stop down lever means.


Sep 19, 2008 | Nikon Normal AF Nikkor 50mm f/1.8D...

1 Answer


Without knowing what camera you have I would set your camera's aperture to f/8. I would have your camera mode set to either aperture priority or manual, and leave the aperture on the camera set to f/8.

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May 12, 2008 | Quantaray 500mm f/8.0 Mirror with Macro...

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Flashing letters in lens

Turn the aperture ring on the lens to its smallest aperture (largest f/number) and lock it there if it has a lock. You control the aperture through the command dial on the camera body, not the aperture ring on the lens.

Mar 10, 2008 | Quantaray 28-90mm f/3.5-5.6 for Pentax

1 Answer


Make sure your F stop number is not set to a high number.
like 22 unless you change the f stop in the camera. what im telling you to make sure of is that the aperture of the lens is not set to its smallest opening. because that would make the eye piece look dark inside. to fix you would just turn the ring with the numbers going from 3.8 - 22 or something close to a lower number like the 3.8.
let me know if that fixes it,

Nov 15, 2007 | Quantaray 28-200MM F3.8-5.6 Lens for Canon...

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