Wrong X2 bought.

[sukkie58]

Hi my husband has just bought me a X2, unfortunatly it's for L fit lens, I only have EF fitting lens, can anybody give me any ideas if I can buy anything to make it work. I have a 1200D. Thank you

[kvbarkley]

An effective, though expensive solution!

[Waddizzle]

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@sukkie58 wrote:

Cheers all.

Its a canon 2x extender mark ii that he has bought, which fits the L lens, for which my hubby didnt know as he isnt into photography,

To save any more confusion here I have now bought an L lens to fit onto the extender.

Cheers again.

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If you can get a full refund on the extender, get it.  It's outdated by a few years.  The main issue with it is that AF may not work on many lenses, and you will be forced to use MF. 

[TCampbell]

Focal length multipliers (such as a 2x Extender) not only mutliply the focal length of the lens, they also multiply the focal ratio of the lens.  In other words, your camera may no longer be able to use auto-focus with a 2x extender (depending on the lens.)

2x extenders should typically only be used with f/2.8 or lower focal ratio lenses because f/2.8 x 2x = 5.6 and any camera body can still auto-focus at f/5.6.  However... suppose you have an f/4 lens and use a 2x extender... it now becomes f/8.  Very few cameras (and only the high-end models) are capable of achieving auto-focus at f/8.  This has to do with how phase-detect focus systems work.  

You will also notice that the images aren't quite as sharp with the 2x extender as they are with no extender.  There is a slight degradation of the optics.  

This is typical and every tele-extender has this issue ... to some degree.