Join for FREE
It only takes a minute!
Magnifying the passion for nature. Zeiss Victory Harpia 95. New!

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply
 
Thread Tools Rate Thread
Old Tuesday 3rd April 2007, 16:48   #1
HokkaidoStu
occasional moderator
 
HokkaidoStu's Avatar

 
Join Date: Jan 2003
Location: Hakodate Hokkaido Japan
Posts: 1,948
Is this just a piece of junk?

Whilst searching on e-bay for second hand lenses for my new 400D (no luck ) I found this and this .

Are these just junk? I guess they must be at that price.

My Sigma cheapie 70-300mm has a 58mm thread so I could in theory attach these.

I may embarrass myself here. Excuse my extreme ignorance but are these teleconverters? I thought teleconverters went between the lens and the camera and not on the end of the lens.
__________________
My Blog
My Photos
HokkaidoStu is offline  
Reply With Quote

BF Supporter 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Support BirdForum With A Donation

Old Tuesday 3rd April 2007, 17:08   #2
Lisa W
Super Moderator
 
Lisa W's Avatar

 
Join Date: Apr 2006
Location: RV traveling around the U.S.
Posts: 27,754
Bet it's to good to be true! But for 24.95 I am almost tempted to try it!
My teleconverter on the 20D is between the lens and the camera, have to tape the pins in order for AF to work.
However, I get decent shots with my S3 and a 1.7 teleconverter that sits on top of the lens.
__________________
"A bird doesn't sing because it has an answer, it sings because it has a song" - Joan Walsh Anglund

My birding photos
RV Travel Blog
Lisa W is offline  
Reply With Quote

BF Supporter 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Support BirdForum With A Donation

Old Tuesday 3rd April 2007, 18:32   #3
GYRob
Registered User
 
GYRob's Avatar

 
Join Date: Apr 2006
Location: Lincolnshire
Posts: 2,725
MOST VIDIO cameras take this in front type of converter and as said the s3 does so for the money it could be ok .
wonder if they do one for my 500f4
Rob
GYRob is offline  
Reply With Quote

BF Supporter 2011 2012 2013 2014 2015 2016 Support BirdForum With A Donation

Old Tuesday 3rd April 2007, 19:31   #4
macshark
Electron Chaser

 
Join Date: Apr 2006
Location: USA
Posts: 2,541
Your sensor will definitely outresolve this type of telephoto extender, so you are not going to get results any better than cropping images. Judging from the price point, it is likely these will also introduce significant amount of CA and loss of contrast.

I have tried to put the Canon 1.5x TC (DC-TC58N) which also has a 58mm thread in front of a 70-300 IS just for fun, and the results were sufficient to convince me that it is not worth it.
macshark is offline  
Reply With Quote
Advertisement
Reply


Thread Tools
Rate This Thread
Rate This Thread:

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

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
The Best Piece of equipment EVER for the digiscoper and digi-videoer??? Ghostly Vision VideoScoping 4 Monday 8th October 2007 23:47
What eye piece for es80ed digiscoping James_Death The Birdforum Digiscoping Forum 10 Wednesday 18th January 2006 18:41
Heron waiting for a piece of chicken. Ronald Zee Birds & Birding 7 Friday 18th March 2005 14:32

{googleads}

Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.14542103 seconds with 13 queries
All times are GMT. The time now is 15:54.