Question about Nikon D90 Digital Camera with 18-105mm lens

1 Answer

D90 wont shoot in auto mode. gives me r21 error. Manual mode works fine

Nikon d90 with 18-105 lense wont shoot at all in auto mode. r21 error. Manual mode is ok. any ideas. Ive tried to turn the lense back and forth several times but nothing

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  • kakima Apr 22, 2014

    Which lens(es) are you using? r21 isn't normally an error code but simply a count of the number of additional shots you can take in the current burst before the buffer fills up. You should still see the r and some number even in manual mode.

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  • Nikon Master
  • 6,702 Answers

Did you switch the Focus-mode selector to MF?
It is the switch with number 8. Perhaps you are used to switching on the lens, but on the body is also a switch. Normaly used for the older AF lenses.

d90 wont shoot in auto mode. gives me r21 error. M - ef6bcbcb-fb5e-4e4f-8886-8b72082cffea.png

Posted on Apr 23, 2014

  • bernadette kirkpatick
    bernadette kirkpatick Apr 24, 2014

    THANK YOU!!! I had no idea that was it. Im just confused as a new user to the D90

  • bernadette kirkpatick
    bernadette kirkpatick Apr 24, 2014

    I thought if you are in auto mode then you switch to AF on the camera body and A instead of M on my 18-105 lense

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Posted on Jan 02, 2017

  • 62 Answers

SOURCE: Slow Shutter Speed on Nikon D90

I suggest that you try a system reset for your camera and then complete the following adjustments to see if your camera will respond like it did originally.

Nikon D90 green reset dots. Press at the same time to reset.
Nikon has an easy reset feature. I use it every time I pick up a D90.
My standard operating setting is only a few clicks different from the reset defaults.
I reset everything every time I use my camera, much as a pilot uses a checklist before every flight to prevent any switches from being in the wrong position. When I don't check first, I often have left my D90 in some screwy mode, like 2,500K WB and ISO 3,200, from shooting in the dark the night before.
My checklist is therefore Reset, Program, Basic, Medium, and A3. Allow me to explain:
1.) Reset: Hold down the +/- and AF buttons (next to the green dots) for a few seconds, and the D90 comes out of whatever crazy mode it was in and returns to sanity. The top LCD blinks and everything is back to normal.
Reset leaves the detailed menu tweaks alone and resets only the big dumb things I might have changed overnight.
Once Reset, I change these next:
2.) Program: Spin the top left exposure mode dial to P, program auto exposure.
3.) Hold QUAL and spin the rear dial until you see BASIC, and spin the front dial until you see [M]. You'll always see these on the small top LCD, and if you first tap INFO, you can see it more clearly on the huge rear LCD. (Feel free to use other settings if you have a good reason.)
4.) Hold the WB button and spin the front dial three clicks to A3. This gives warmer (more orange) photos that I prefer.

Excerpt taken from: http://www.kenrockwell.com/nikon/d90/users-guide/index.htm

Good luck and happy shooting! I have a D80 and would love to get my hands on the new D90. Make sure you also buy a quality filter for your lens UV0. The quality of the lens is just as important as the body it's attached to.

OpenSource13

Posted on Apr 09, 2009

  • 1 Answer

SOURCE: nikon d40 digital camera

So, before i take my d40 to an authorized tech, should i maybe see if the lense needs to be cleaned then? silly question I know. But i really dont want to waste money on sucha petty problem.

Posted on Apr 25, 2008

BubbaGuru
  • 70 Answers

SOURCE: F-- on Nikon D90's display

Lense and body connection problem...Try removing and replacing he lens. Also you can try to gentley turn the lens on the body to make the contacts touch better...

Posted on Jul 05, 2009

  • 7 Answers

SOURCE: Why is there a delay?? Nikon D90

Sounds like you turned on Exposure delay mode (menu d10). This is similar to the "locking up the mirror" (or somethign) feature on canons.

YOu only need it when you doing a tripod shot with long exposure and you want to minimise absolutly all possibility of shake from the camera its self. Lifting the SLR mirror will cause small shake. Generally you can turn this off (i've felt it ona few times my accident and been confused for a second)

Posted on Aug 21, 2009

  • 4 Answers

SOURCE: nikon d90 - can't take the picture

You just found the Nikon D90 F-- error message solution!
I had the same problem with the Nikon d90 F-- error message which drove me nuts!
I called Nikon, they walked me through a lengthy reset procedure which didn't work. After spending a few hours researching online, I found the answer.
It is not the memory card or nor a defective camera body. The lens does not need to be rechipped.
The F-- error means the camera is unable to communicate with the lens and is caused by a poor connection between the ground contact pin on the lens and the metal mounting ring on the camera. Most people buy the camera, install the lens once and then encounter the error. This one time lens installaiton does not give the contact point a chance to seat itself properly. You will find that if you hold down the lens release button and twist the lens as if to remove and reinstall the lens about 10 times that the problem will disappear. You don't even have to actually pull the lens away from the body, just press the release button and twist on and off and allow the friction to provide a better electrical contact.
Too bad Nikon doesn't tell their customers about this simple fix. Other than that, great camera. Good luck.

Posted on Sep 01, 2009

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My nikon D 90 whit an old lince 28-105 will not auto focks an offen not take pictuers. WHY not???? must i go too the shop wher i bought it or am i douing somthing wrong??? i am from Denmark and my englich...


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The Nikon D90 will take pictures with many older lenses, however there are some problems with using these lenses. Most of the time, they will not auto focus and many depending on type lens may not work in any mode other than "M" (manual). No P, A, S, AUTO or any of the "Scene" modes.
d86d092.jpg
Set to "M" (manual)

You will have to set the exposure values (aperture & exposure time) and focus manually. Ken Rockwell has compiled a list of lenses that may help you learn more about using older lenses with your D90.

Please rate this reply if you found it helpful - good luck!

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