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Focus problems I can't figure out why, but what I see as focused does not come out focused. I have tried the diopter. Also I have an old pentax zx6 that I can focus fine so I don't think that it is my eyes. Any ideas?

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Re: Focus problems

If you have a low light setting or night setting or a speed priority setting there is the possibility one or the other has been inadvertently activated and you are getting long time exposures check out all your setting with the manual.

Posted on May 17, 2007

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By adjusting the diopter on your camera effect the image quality? I guess what I'm trying to say is, will the diopter setting effect how your camera adjusts the focus in auto or manual?

Diopter is for your eye only and does not effect the focus of the camera. By using the 1/2 down method, by pressing the photo taking button half way down, you can set the cameras focus. on some cameras this is shown where it will focus by a red square. If you change the diopter this is like adding by focal lenses for reading a book. and setting the distance your particular eye needs for eye relief. On binoculars this is done with screwing the eyepiece closer or farther away from the other lens. check out online this will give you more details of what a diopter is or does. Always know what setting your shooting at as well. for instance if you are on a flower setting or Macro then this is for up close work. But up close doesn't mean too close. Most cameras on Macro need to be 6 inches to 12 inches away. But if you are say 24 inches away it won't focus right so don't try to zoom in, use your optical instead of digital and simply move closer or change the settings on the camera to a different setting or it may be blurry.

Jul 24, 2011 | Digital Cameras

2 Answers

My Pentax Optio W10 camera takes some out of focus photos. What do I do to solve this problem?

Your camera has the option for manual focus. This option allows you to focus the camera to capture what you want, rather than the auto-focus feature.

This will be indicated by a MF in the top center of your camera screen. You should be able to change this by finding record mode and changing your AF settings. Change your MF to the [ ] option and you should be on auto-focus settings.

Hope this helps.


Feb 28, 2011 | Pentax Optio W10 Digital Camera

1 Answer

I have a Cannon EOS Rebel xsi SLR camera. When I look through the viewfinder the image is blurred. IT worked fine the last time I used it, but this time it is blurred and I haven;t been able to correct...

Two possible situations. It might be that the lens focusing system isn't working. Try focusing by hand (turn the lens manually) If the image moves through a point of sharp focus, then you have a lens or focus motor problem.
More likely, you have improperly adjusted the diopter. There is a small, circular wheel on the right side of the viewfinder, toward the top corner. It is sometimes covered by the rubber viewfinder hood so you might not notice it. This adjusts the diopter correction in the viewfinder and if it's set wrong, nothing will ever look in focus. The pictures would be fine, but since the diopter is a correction for your eyesight, the viewfinder will be out of focus.

Feb 05, 2011 | Canon Digital Cameras

1 Answer

How to mount Minolta AF 28-80/3.5-5.6 on pentax

Unfortunately, it is not possible to mount Minolta lenses on a Pentax K mount camera and retain either auto-focus, metering, or the ability to focus at infinity.
The reason for the loss of the ability to focus at infinity is because the distance from the mount to where the image forms on a Minolat lens is 43mm, whereas on a Pentax it is 46mm, so the Minolta lens glass would need to be 2mm into the body of the Pentax camera in order for the image to form on the sensor (i.e. have a clear image that is in focus).
The only solution to this is to purchase an adapter with an optical element such as this: This will allow you to focus at infinity, however you will have to use stop down metering and manual focus, as the electrical contacts will not connect. Also, you can expect a slight loss of image quality when using an adapter.
I personally have a few Minolta lenses that I have wanted to use on my Pentax, so I understand your pain. It is a shame they don't work better.
Thank you for using FixYa!

Apr 18, 2010 | Pentax *ist DL Digital Camera

1 Answer

Picture on LCD out of focus and glarey

When you have a diopter adjustment dial, try looking through your viewfinder and move the diopter one way or the other until it appears to be in focus for you.

Dec 26, 2009 | Fuji FinePix F30 Digital Camera

2 Answers



I don't own a K10D, but I do own a K100D which I have successfully used both manual focus & auto-focus lenses from my old Pentax stash!

1) If it is a manual focus lens, you need to turn off Autofocus on the body of your K10D. On my K100D, there is a switch on the side of the lens mount that says [-MF or -AF]. "-MF" is manual focus mode & "-AF" is autofocus mode. Since your lens doesn't have autofocus capability, turn it to the "-MF" mode.

Also . . . When I press "Menu" and go to "Custom Setting", I change two settings . . .

1) I change "Using aperture ring" to "Permitted". This allows you to use manual lenses (M lenses) that do not have an auto(exposure) setting, and also lets you use Auto lenses (A, KA, KA2, FA, etc.) in either the Auto or manual aperture setting modes.

2) I change "Fl with S lens used" so that even with a manual focus lens, although I don't have autofocus capability, my K100D beeps and shows a little red square in the viewfinder when I have successfully focused manually!

The K10D should have the same options.

This should get you up and running!

I have had a load of fun with my old lens on my new digital Pentax!

Take care & Happy Imaging!

Jul 14, 2008 | Pentax K100D Super Digital SLR Camera

1 Answer

Canon digital camera will not focus

Check your diopter adjustment. It should be a small wheel on the upper right of the viewfinder. It is designed so that people who normally wear eyeglasses can use the viewfinder without their glasses, but it can occasionally get bumped. If the diopter adjustment is way off, it is like looking through someone else's eyeglasses!

Mar 17, 2008 | Canon Rebel XT / EOS 350D Digital Camera

1 Answer

Pentax K10D won't work with lens from Pentax K100 (film0

The lenses are probably manual focus lenses,  
  1. Make sure that the apature ring is set to 'A' or automatic, 
  2. if these are manual focus lenses then switch the focus switch on the left side of the camera body to MF 
  3. If this still doesn't work, or you are having trouble with the apature ring then press the menu button to go to the  menu then press the right arrow key untill you are in the  Custom Settings, scroll through the custom settings with the up and down arrow keys until about the 2nd from bottom there is an option called "using aperture ring" set this to 2 (Permitted) This will make the camera take a image when lens is on any f-stop manually. 
Try this and everything should work fine. If all this hasn't worked then try seting the mode dial on the camera to M manual mode. Cheers

Feb 12, 2008 | Pentax K10D Body Only Digital Camera

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