Using a 2x converter with a Canon 100mmL IS Macro

I don't think it will physically fit, nor the Canon 1.4x.

You'll might get away with a 1.4x Kenko Pro 300 which has a good rep, but try it first! That one worked quite well on my 100 2.8 non-IS macro.
 
Hi Richard and Bob. Thanks for the reply and your thoughts.

I currently use a 1.4x with the lens by using a 12mm extension tube as a "go-between" and it works a treat (thanks to Sara (Swag72) for the tip by the way).

I was just wondering, for instance, if image quality would suffer with the 2x, albeit being the newest version :shrug:
 
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nigpd said:
Hi Richard and Bob. Thanks for the reply and your thoughts.

I currently use a 1.4x with the lens by using a 12mm extension tube as a "go-between" and it works a treat (thanks to Sara (Swag) for the tip by the way).

I was just wondering, for instance, if image quality would suffer with the 2x, albeit being the newest version :shrug:
Click to expand...

I have no idea what that workaround would do for image quality, or magnification or working distance. But it probably won't make it better - extender is designed to fit next to the lens.

Seems a bit of a bodge for the extra focal length, when a 1.4x Kenko will fit (I think ) and work properly. And it's cheap. Maybe look at the 180L macro, especially considering the cost of those Mk3 extenders.
 
Here's a couple of shots Nigel (the back of one of Kerso's business cards) and both at MFD
1Ds3 and EF100L 1/640 at f/4 manually focussed using Liveview at 10x
10120_16519255434dc95cf181ce8.jpg


1Ds3 1/125 at f/8 Liveview 10x focussed EF100L with 2x converter and 12mm tube between.
10120_6454307144dc95cf7f3627.jpg


Both shot RAW, normal sharpening and resize for web (800x566).
The 2xII and 2xIII will be identical on anything but a FF body....well, mine are at least.

Bob
 
Thanks for doing that for me Bob, much appreciated :thumbs:

That doesnt look too shabby does it :thinking:

Maybe sticking to the previous version of the 2x will be the cheapest option of extending the working distance lens to subject (butterflies, dragons and damsels)
 
nigpd said:
Thanks for doing that for me Bob, much appreciated :thumbs:

That doesnt look too shabby does it :thinking:
Click to expand...
You're welcome Nigel and no, not too shabby at all. I guess 100% crops might show a difference but real world stuff won't have the same visible degradation. I'll take the combination out later for a few Damsels (I normally use the 180L) and see what gives.

Bob
 
nigpd said:
looking forward to the results :thumbs:
Click to expand...

It got a little too breezy for Damsels so I grabbed a buttercup instead....the stamen detail should show you what sharpness is available.
This was shot handheld on a 1D4 1/200 at f/10 and processed accordingly. The final view is a 50% crop resized for the web. Maximum working distance for the combination is just over 1m and that can be a little marginal when chasing damsels/dragons.
Bob
10120_5154443574dc9a67ed7b3b.jpg
 
Canon Bob said:
It got a little too breezy for Damsels so I grabbed a buttercup instead....the stamen detail should show you what sharpness is available.
This was shot handheld on a 1D4 1/200 at f/10 and processed accordingly. The final view is a 50% crop resized for the web. Maximum working distance for the combination is just over 1m and that can be a little marginal when chasing damsels/dragons.
Bob
10120_5154443574dc9a67ed7b3b.jpg
Click to expand...

Thanks for taking the time to do this Bob. Time to put my hand in my pocket for a 2x methinks
 
Nigel - Buy the Canon 25mm tube, add it to your 12mm and use both with your 100-400mm. That will give a great dragonfly and butterfly lens.
 
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