Question about Nikon Normal AF Nikkor 50mm f/1.8D Autofocus Lens

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Not able to auto focus when I mounted nikon 1.4d lens to my d90 cam. I've set the aperture to minimum(16) and locked phisically. Camera is functioning but autofocus is not working please solve my problem.

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  • 17 Answers

Try cleaning the contacts (brass knobs) on the base of the lens and within the camera body (brass protrusions) very gently with a clean, dry t-shirt.

Posted on Dec 31, 2010

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1 Answer

Nikon D90: Won't focus properly in automatic mode


Make sure the subject is well lit. The autofocus relies on differences in contrast to determine proper focus. Move to a well lit area or add additional light and attempt again.

Make sure the aperture ring on the lens (if that lens has one on it) is set to minimum (highest number - f22 etc.) This value it often a different color ink than the others to help speed locating it. On most Nikon & compatible lenses, when the aperture is set to minimum, the camera's main & sub command (thumb and finger) dials will control the aperture and shutter speed. When the shutter is held down 1/2 way, the aperture will open fully (to allow the most light in and speed composition) and then automatically stop down to the commanded value when fully depressed for the exposure. If you have the aperture set on the lens to something different - it may be preventing sufficent light from entering and interfere with the autofocus function.

Good luck!

Apr 05, 2013 | Nikon D90 Digital Camera with 18-105mm...

Tip

How to manually adjust the aperture in video mode on the Nikon D90


When working with a AF-D type lens mounted on the D90, you can manually adjust the aperture during video production. In order to do this, lock the aperture at f/22. Turn on live view. Once in Live-View mode, you may unlock the aperture and adjust it during video-taking. You may NOT take a still image when doing this. This feature creates very pleasing videos with out-of-focus backgrounds, and is a very useful tool.

on Dec 10, 2009 | Nikon DSLR D90 Digital Camera

1 Answer

What is the relation of lense maximum apertures and camera settings?


You have not stated which model camera body you have so I can only give you general Nikon information. There is a range over which the automatic settings will work for each camera. In addition, Nikon bodies have multiple sensitivity ranges. On the D90 for example, go into the "Shooting Menu" and open the "ISO sensitivity settings." You will see "maximum sensitivity" and "minimum shutter speed" menus along with the "ISO sensitivity auto control" options. Turn off the auto control option and manually set the maximum (ISO) sensitivity and minimum shutter speed. Also, the Shooting Menu also has "High ISO NR" settings that can be used to accommodate most lighting situations. You need to look in your camera's manual for all the details. The Nikon website has manuals available for all the Nikon products.

Sep 19, 2012 | Nikon D3, D40, D40X, D50, D60, D70, D80,...

1 Answer

Does the Nikon - Nikkor 50 mm F/1.8 AF lens work with a D90? Sorry, Im a newbie, but I am looking at buying this lens, and would really like it to auto focus. I think it should, I just want to be sure...


Yes. I have one and it works perfectly on my D90. If you get the version with an aperture ring, be sure to set the aperture to its smallest setting (f/22) and lock it. You control the aperture from the camera, the same way as on a lens without an aperture ring. If you get the version without an aperture ring, don't worry about it.

Feb 13, 2011 | Nikon Cameras

2 Answers

I used the Nikon D90 with Lens Kit 18-200 mm, and I also bought the new Lens call Nikkor 75-300mm. But when I connected the new one (Nikkor 75-300 mm) in my camera and took some pictures, after that I...


That's the Nikon error message for a lens with aperture ring set to something other than the minimum (i.e. highest number).
The camera insists on controlling the aperture ring, and to do so, the ring must be set to the minimum setting.
Unless it is a "G" lens, which has no aperture ring whatsoever.
The camera body sets the aperture of the lens wide open while auto-focusing, and displaying through the viewfinder. When it comes time to flip the mirror up and take a picture, the camera dials the aperture to the setting you (or the camera) have selected.

Dec 22, 2010 | Nikon D90 Digital Camera with 18-105mm...

1 Answer

Hi i purchased also Nikkor AF 50mm f/1.8D and i could'nt hear the click sound when i mounted it on my Nikon D90 cam, and return to my kit lens and it's doing very well. I did follow the advised you give...


You need to turn the aperture ring to its smallest aperture (f/22) and lock it using the little orange slide. Control the aperture from the camera, just as you do with the kit lens.

Nov 26, 2010 | Nikon Normal AF Nikkor 50mm f/1.8D...

1 Answer

I have a D90 Nikon, I mounted my Nikkor 50mm 1.8d


Make sure you set the aperture ring on the lens to its smallest setting (largest f/number) and lock it. Without doing so, the lens will not communicate properly with the camera and thus you will not get the autofocusing.

May 30, 2010 | Nikon Normal AF Nikkor 50mm f/1.8D...

1 Answer

Vivitar telephoto lense 500mm


Yes and no. If it doesn't come with one, you'll need a T-adapter for Nikon in order to mount the lens (you can get one from Vivitar, as well as from other manufacturers). The lens is not an autofocus lens, so obviously you will have to focus manually. It's also a mirror lens so it has a fixed aperture. It's what Nikon classifies as a non-CPU lens, so you cannot use the D90's exposure meter. You will have to shoot in Manual mode.

Feb 18, 2009 | Vivitar Telephoto 500mm f/8.0 Mirror...

1 Answer

Tamron 90mm 2.5 adaptall man focus lens


You probably have to set the aperture manually on the lens, because it might not have CPU contacts. I think changing the aperture on the camera will probably have no effect, so just try twisting the aperture ring to wide open.

You usually have to set the aperture at the minimum setting (highest number) so that if the camera is choosing the aperture, it can stop down to the required value.

No good having it set at f2.8 if the shot needs f11.

If the lens is very old, it might have a manual iris that you have to set yourself on the lens. The lenses that stop down automatically will have a tiny peg on the mount that a suitable camera can operate. Gentle pushing of this peg while looking through the lens will tell if it is stopping down - set it wide open first.

If you have a depth of field preview button, this will also have the same effect with the lens on the camera if the body matches up with the lens.

Jan 17, 2009 | Tamron Macro 90mm f/2.5 Manual Focus...

2 Answers

Repairing 20mm af nikon lens diaphragm lock


I'll offer the same answer I just gave on a D200 question: With the lens off, look at the camera mount area. If you are looking straight at the mount, there is a small tab sticking out at about 7oclock on the outside edge of the mount ring. The tab is spring loaded and may be damaged. You should be able to push the tab toward the base of the camera and it will snap back if functioning properly. If it feels loose or doesn't spring back, then switch that ab controls is not being activated.

Oct 24, 2007 | Nikon 20MM F2.8 AF NIKKOR Lens

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