Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Nikon dSLR

Reply
 
Thread Tools Search this Thread
Old Oct 14, 2009, 6:06 PM   #1
Junior Member
 
Join Date: Oct 2009
Location: Norwalk , Ohio
Posts: 2
Default I have a lens Issue

Hello,
My name is Chris and I have recently bought a Nikon D90. I have been out learning my new camera testing different lenses and this is where I think My problem may be.
While looking on my computer at the shots I have taken I noticed on the shots where I used My 70mm-300mm With a 2X converter that the shots seemed to have a bluish outline the subject matter when Iwas Zoomed all the way in. I am thinking the Bluish outline is a result of to much motion and is causing a slight blur but wanted a second opinion.
All of my other shots were amazingly clear and focused. I have had no other issues(YET) other than this one.
If anyone could give me their thoughts it would be much appreciated.
Chrispuzder is offline   Reply With Quote
Sponsored Links
Old Oct 15, 2009, 12:37 AM   #2
Junior Member
 
Join Date: Oct 2009
Location: USA
Posts: 8
Default

Do you take the shots w/o tripod right ?
sangA700 is offline   Reply With Quote
Old Oct 15, 2009, 5:23 AM   #3
Administrator
 
Join Date: Jun 2003
Location: Savannah, GA (USA)
Posts: 22,378
Default

Welcome. I've moved your thread down to our Nikon dSLR forum, where you may get some tips from Nikon shooters.

Your problem sounds like Chromatic Aberrations. When you use a TC, you can expect some image degradation, especially with a 2X TC. Does this look like what you're seeing?

http://forums.steves-digicams.com/ni...-1-8d-d90.html
JimC is offline   Reply With Quote
Old Oct 15, 2009, 5:25 AM   #4
Super Moderator
 
Mark1616's Avatar
 
Join Date: Oct 2005
Posts: 7,452
Default

You are very likely seeing chromatic aberrations. See this link for more info.

http://www.dpreview.com/learn/?/Glos...rration_01.htm

Using a 2x TC will enhance any flaws in a lens so usually you would only use a 2x (or 1.4x) TC on higher end lenses. Also using a 2x TC on a 70-300 means you have f11 so you are not getting much light in so shutter speeds will be low, you will be getting pretty soft results as well due to reduction in resolution so pretty much I wouldn't be using one. Unfortunately there are no real cheap ways of getting quality in a long lens.
Mark1616 is offline   Reply With Quote
Old Oct 15, 2009, 5:26 AM   #5
Super Moderator
 
Mark1616's Avatar
 
Join Date: Oct 2005
Posts: 7,452
Default

Quote:
Originally Posted by JimC View Post
Welcome. I've moved your thread down to our Nikon dSLR forum, where you may get some tips from Nikon shooters.

Your problem sounds like Chromatic Aberrations. When you use a TC, you can expect some image degradation, especially with a 2X TC. Does this look like what you're seeing?

http://forums.steves-digicams.com/ni...-1-8d-d90.html

You beat me Jim!!!!! LOL
Mark1616 is offline   Reply With Quote
Old Oct 16, 2009, 7:06 PM   #6
Junior Member
 
Join Date: Oct 2009
Location: Norwalk , Ohio
Posts: 2
Default

Thanks for the information. Yes this is exactly what I am seeing in the shots. I am still learning the camera and what I can and cannot do with the lenses. I am glad there is a forum for this. I love my camera and taking shots of everything I can but I also do not want to be someone who bought a multifunctional camera so I could use it like a point n shoot. I would post some pics but do not know where to go to get the codes to post them. Any tips would be grately appreciated. Thank you all again
Chrispuzder is offline   Reply With Quote
Old Oct 16, 2009, 7:10 PM   #7
Super Moderator
 
Mark1616's Avatar
 
Join Date: Oct 2005
Posts: 7,452
Default

It's easy just to attach an image here, check out this link which should help.

http://forums.steves-digicams.com/fa...b3_attachments

Looking forward to seeing some of what you have been shooting.
Mark1616 is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 5:52 PM.