John Spaar
Senior Member
Member said:
Member said:
-
Welcome to the new forums! Please read this first. For known issues we are working to resolve, click here.
1.4x extender for older 300mm /f2.8
- Thread starter John Spaar
- Start date
Solution
John Crowe
Veteran Member
I bought my beat up one last year but because of Covid I have done very little with it. I intend to use it with my EF 1.4x and EF 2x. I do intend to switch my EF 2x for the EF 2x II so that I can stack the converters with the 300/2.8. It is the only stackable converter that Canon makes. I have had excellent results stacking converters with other lenses so looking forward to trying it with the 300/2.8.
From my understanding the version II converters just added weather sealing. Many claim that the version III is sharper but I doubt it is all that significant.
P.S. Just went to the comparison site and with the 300/2.8 IS version 1 the EF 1.4x II looks sharper than the EF 1.4x III, but on the 400/2.8 IS version 1, both 1.4x are same in the centre but edges on the III are better than on the II. So, like I said probably no real difference. At 300/400mm the edges of an image are usually out of focus anyway, so who cares if they are softer.
From my understanding the version II converters just added weather sealing. Many claim that the version III is sharper but I doubt it is all that significant.
P.S. Just went to the comparison site and with the 300/2.8 IS version 1 the EF 1.4x II looks sharper than the EF 1.4x III, but on the 400/2.8 IS version 1, both 1.4x are same in the centre but edges on the III are better than on the II. So, like I said probably no real difference. At 300/400mm the edges of an image are usually out of focus anyway, so who cares if they are softer.
Last edited:
Igor Sotelo
Leading Member
The EF 2X II has a seal at the body mount. Though I think the 300mm 2.8L non-IS doesn’t have weather seal.
My results of using this extender on zoom lenses was not great. On such high quality primes, like the 300mm 2.8L, it’s most probably a different story.
hotdog321
Forum Pro
I bought a 300 f/2.8 non-IS new back in 1993 and it is still one of the sharpest lenses I own. The AF works well with my 1.4X II Extender and is even usable for sports.
One word of advice, tho. My 300 f/2.8 non-IS actually works better with the old 2X version 1 extender as opposed to the modern 2X III extender. This is a case where old is better than new for this particular lens. Found this out the hard way.
--
photojournalist
http://craighartley.zenfolio.com/
Last edited:
Igor Sotelo
Leading Member
Good photos.
Sorry for digressing a little bit from the main topic, but would you recommend the EF 1.4x II or III version for the 300mm 2.8L IS version? And should I get good performance them the EF 2x II from that lens.
The second generation of EF teleconverters were introduced in 2001, with the 300mm 2.8L IS introduced in 2000. But there are comments III versions have better image quality and faster autofocus.
John Spaar
Senior Member
Will the extenders effect any AF micro adjustments? I had to use a plus 8 with my 7d Mk2.
hotdog321
Forum Pro
Sorry, I just don't know. I never owned the IS version (wish I had, but I've been really happy with my old non-IS).
--
photojournalist
Photos by Craig Hartley
Welcome! I am an editorial photographer based in Houston, Texas. I've put together some of my cool, fast-loading pages for your viewing pleasure. Enjoy!. Welcome! Craig Hartley is an editorial photographer based in Houston, Texas. I've put together some of my cool, fast-loading picture pages for...
craighartley.zenfolio.com
John Spaar
Senior Member
Mine is the the older version also.
Keyboard shortcuts
- f
- Forum