I may be eating a bit of "crow" now...

...in that previously, I would tend to consistently lambast the idea of using much larger EF-S or EF lenses (via an adapter) on M bodies.  I for one am not happy (satisfied) with the pitiful amount of regular EF-M lenses that Canon have made available.  So after the M10, I've held off getting any more M bodies (like I really need more cameras at this point) due to the lack of an EF-M lens map.

But I had 3-4 inexpensive EF-S lenses (that are highly reviewed) and I decided to reach for them and use them on various M bodies.  And I cannot tell you how surprised (delighted) I was with the results I began getting with them.  Yes, yes, I know...the size issue - but once I got over that, they are fairly light, given their size (plastic construction) - and surprisingly have a quality feel to them.

The 3 lenses I'm talking about in this instance (you may have more on your lists) are:

1.  The EF-S 10-18 F/4.5-5.6 IS STM:  Yeah, we all know how great the EF-M 11-22 is - that's a given and I have that lens.  But after attaching this 10-18 to one of my M2's, I was taken aback at the "wider" angle reach and the overall clarity of this lens.  As you all know, incorporating even slight number reductions on the wide end (as much as just 1 MM) can result in an appreciable widening of the scenes captured.  And the 10-18 does this.  I got mine for only $249 and prior to it arriving, I had assumed it would be a bust due to the price.  However, once it arrived I was pleasantly taken aback at both the build quality (even though it has a plastic lens mount) and the IQ levels.  I love it so much - not to mention having the added convenience of having the IS switch on the lens (meaning not having to access the menu to turn on IS) - that I've kept it on that M2.

As an aside, the links to get good ones on US eBay (new and used) are here:

Link for 10-18's on eBay

2.  The EF-S 55-250 F/4-5.6 IS STM:  Here is another lens that caught me off guard.  I typically don't use long telephoto zooms as most of my photography styles are confined to scenic and architectural models.  But a few weeks ago I attached this lens to the M3 just for sh_t's and giggles.  I went to a local park and began shooting distant scenes.  I was very pleasantly surprised at the "clarity" of the images and the smooth zoom functions (not typically found in this inexpensive genre) of the lens.  Again, I was shaking my head, realizing that I was a bit ignorant with past statements about using larger regular Canon lenses on the M platform.  Plus - again - it's nice having the IS switch on the lens, in lieu of stopping what you were shooting in order to access this feature in the menu.  I got mine for around a ridiculous $159 (with US warranty) with the commercial box on eBay.

As an aside, the links to get good ones on US eBay (new and used) are here:

Link for 55-250's on eBay

3.  The EF-S 18-55 F/3.5-5.6 IS STM:  OK - so we know that we have plenty of average (or below average depending on the copy you have) kit lenses.  We have the EF-M 18-55 and the EF-M 15-45.  And I enjoy using them all.  But the other day I managed to get my paws on this EF-S 18-55 f3.5-5.6 IS STM kit lens for only $89.95 (in commercial box with US warranty) off of eBay.  I was not expecting much at this price point, but I was willing to give it a shot.  When it came I temporarily put it on my M3 and found it as good as my EF-M 18-55's (I have very good copies of that lens model).  Again, what I liked about this EF-S version was the IS switch on the lens which makes a world of "convenience" difference to me.

As an aside, the links to get ones on US eBay (new and used) are here:

Link for EF-S 18-55's on eBay

Alright, so in the end, why am I rehashing information about lenses we've all talked about in the past?  Because they are so darn good (especially the 10-18 and 55-250).  I initially ignored these lenses in the past due to their all plastic built quality and size - often lambasting their use on M bodies.  But now that I've taken the time to use them, I'm hooked to say the least - they are that good.  So for very little outlay of funds, these highly reviewed lenses (except the 18-55 which is really dependent on the quality of the copy you get) will provide you with IQ levels that are a cut above.

OK, I'm done...thanks for listening