Richard2673 wrote:
The 7d has a lot of good things talked about - but what about using it for macro photography for flowers??
And which of the Canon "L" macro lenses would be best for the 7D II??
First, for general macro uses and most versatility, I'd recommend a lens in the 60mm to 105mm range and prefer the 90 to 105 end of that myself. Shorter focal lengths (35mm, 50mm) put you awfully close to your subject, while longer focal lengths (150mm, 180mm) are a lot harder to hold steady so are more likely to require a tripod.
Next, don't be an "L-coholic"! :roll:
The EF 100/2.8 USM is every bit as good optically as the more expensive 100/2.8L. Both lenses have exceptionally high image quality.
In fact, the 100/2.8 USM non-L is
identical in build to the 180/3.5
L USM. It's better in performance is some ways too... a lot faster focusing for one. The 100/2.8 USM just doesn't need fancy glass elements to do it's job very well, so doesn't qualify for the "coveted red stripe" under Canon's definition of their L-series.
The main difference is Image Stabilization, which the 100L has and the 100/2.8 USM doesn't. (Other more minor differences include... The L has a three stage Focus Limiter, while the non-L's is two stage. And the L uses 67mm filters, comes with a lens hood, while the non-L uses 58mm filters and it's hood is sold separately.)
Frankly, for macro shooting, IS isn't nearly as effective as it is for other things. At 1:1 magnification, you may get 1 stop worth of assistance with the Canon 100L, which uses a specially designed Hybrid-IS. That's actually better than stabilization on other macro lenses (Nikon VR, Tamron VC and Sigma OS give even little or no assistance at 1:1). All will typically see more help from stabilization if and when using them for non-macro purposes, as a moderate telephoto, possibly up to 3 or 4 stops.
Personally I would rather spend the money on a tripod mounting ring, which is a convenient feature when shooting macro with a tripod or monopod. This is an optional accessory with both the Canon 100mm lenses and one of the key reasons I'd choose either of them over any other 90 to 105mm macro lens from other manufacturers. AFAIK, none of those other macro lenses can be fitted with a tripod ring. Canon Tripod Ring D for use on the 100L costs $172, and is exclusive to that lens. Tripod Ring B for use on the non-L costs $140 and is used on the MP-E 65mm and EF 180/3.5L lenses (included with those lenses). There are cheaper third party rings available for both lenses (about $50).
But that's just me. Maybe you want the L with IS and will try to handhold more shots with it or want to use it for non-macro purposes more than I do with mine. You really can't go wrong with either of the Canon 100mm macro lenses.
There are also two excellent Tamron 90mm lenses, as well as a Tokina 100/2.8 and a Sigma 105mm, all of which are worth a look.
With 7DII crop sensor APS-C, if you prefer a more compact lens there's also the option of the EF-S 60mm USM, which is very high quality images too. You mention shooting flowers, which usually don't require full 1:1 magnification, so even with a shorter focal length like this the working distance may be more than adequate. When I want a small macro lens in my bag "just in case" and am out with my crop sensor Canon, I have a Tamron SP 60/2.0 (also a "crop only" lens). I chose it instead of the Canon 60mm because the Tamron doubles better as portrait lens, because of it's unusually large aperture. The Tamron is not useful for any sort of action shooting, because of slower micro motor type focus drive. The Canon 60mm's USM auto focus drive is faster.
Personally I use the EF 100/2.8 USM most and it's still my top recommendation to any Canon shooter looking for their first macro lens. As mentioned the Tamron 60mm is my main backup. But I also use Canon 180/3.5L and MP-E 65mm macro lenses, for more specialized purposes. In addition, I use some non-macro lenses such as TS-E 45mm, TS-E 90mm, EF 300/4L USM for close-up and macro purposes. In fact, with macro extension tubes and diopter lenses, at time I've used non-macro lenses ranging from 20mm to 500mm for close-up work. Heck sometimes I've even used close-focusing zooms (28-135, 24-70/2.8 and 70-200s) for close-ups, with extensions and diopters.
There really aren't any "bad" macro lenses. Almost all will render very high image quality. So it's really more about the other features they offer, that makes a difference. The Canon 100mm lenses are among the most fully featured from any manufacturer and neither will disappoint.
Have fun shopping!