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Hello all,

I would like to ask community's opinion on the following matter.

I have (among other) 24-105 4L IS which I use as a general purpose lens when I cannot carry a large selection of lenses (in the later case I would rather use 24-70 2.8L II)

I use it for landscapes and for internal building shooting (museums, churches).
I am thinking about upgrading it to 24-105 4L IS II for the better IS.

I have seen all comparisons and Canon's MTF diagrams so I understand that I do not get much of an optical upgrade.

The offer I got is a rather modest 350 euros. So forum members suggestions are more than welcome.

Do I have a risk of getting a slightly worse lens optically ?
I believe the two lenses seem more or less the same with very small differences.

Keep in mind that my copy seems just fine fully open with 5DMkIV although I did not
make specific tests, just judging from the results.

So based on the above would you upgrade it merely for the better IS for shooting museums and churches ?