Canon RF100mm F2.8 L Macro is USM Lens, Medium Telephoto Lens, Macro Lens, Compatible with EOS R Series Mirrorless Cameras, Black

Wonderful lens. Laser beam sharp.The macro capabilities are awesome and the hundred millimeter focal length it’s great for portraits. No complaints with this lens.

This is my only L lens. It's a little large and a little heavy, and it was very expensive, but you get what you pay for. It's images are crystal clear, as you would expect for a rime lens, and I bought it for the Macro capabilities... I like taking photos of bugs and other little critters, and it's perfect for that. It's also a great portrait lens, if you have enough room to back off a bit from your subject, since 100mm is a little long for portrait photography. It couldn't really be made any smaller and be as fast as it is. Also, it's weather sealed. I am completely satisfied with this lens.

Almost all of my macro shots are taken hand held, so I really like the IS of this lens. Combine that with the IBIS of the R5 and R6 and you get a winning combination. I've tried the Spherical Aberration (SA) ring, and it works ok, but prefer to do that in post, if need be, so I have it locked on "0". Once you get the hang of it, it could save you a bit of editing in post if you like to mess with that, so I think it is a nice feature. I'm just not big on doing a lot of post editing, particularly messing with bokeh. I like the control ring of the new RF lenses and have it programmed so I can select focus points. It focuses quickly and I don't think it's entirely the cameras because I have the EF 100mm f/2.8 L IS USM Macro and ring adapter, so Canon has improved on the USM. IQ is similar to the EF version, but I have to give the edge to the RF (I'm a pixel peeper), I have taken enough shots with both the EF and RF 100mm f/2.8 L IS USM glass on the R5 to make a fair comparison. As you may know, all lenses have a "sweet spot". Although it has very good IQ wide open (f/2.8), but take it up a few stops, and IQ is amazing. I've found f/8+/- to f/16 to be a good range, although I haven't needed to take it higher than f/16 to get my shots. The wasp face was taken at f/16, 1/500th.The RF 100mm f/2.8 L IS USM Macro is a nice improvement of the EF version, IMO, and is a must have if you like to shoot macro, even occasionally, on your new R series camera. Yes, it is a bit expensive, but worth every penny.It's really hard to tell from images posted here just how good they are, but I will post some anyway. The shots are cropped, maybe 50%, mainly because the subjects are so tiny and even at 1.4:1, they are small on the R5 sensor. The flower with the yellow disk is smaller than a dime and is a 40 shot "focus stack" taken using the EOS R6 on a tripod. The other flowers are 1/4"+/-. The wasps are 1/2", if that. Except for the "focus stacked" image, the rest are "hand held" and I used high ISO settings so I could freeze action and to keep my aperture in the "sweet spot". The wind was blowing the flowers and the insects were constantly moving.

I've used the EF version of this lens in the past, and loved the results, from the creamy bokeh, and sharp subjects, to how light it is, and it's macro capabilities. The RF takes it to next level with super fast AF, great IS combined with IBIS. I've actually started using this for portraits as well and been blown away by the results.In terms of Macro photography, I've tried extension tubes with good results but never overly happy with them. The results that this lens renders are absolutely beautiful images. 100% worth every penny.The one thing I find gimmicky is the SA adjustment. It's occasionally interesting in order to get ethereal glowing images, but adjusting for softer bokeh, just makes the image overall blurry. If you adjust for sharper bokeh, it becomes rather harsh. Neither option suites my shooting style..I'm glad there is a locking option so the SA is not engaged at all.Overall, I 100% recommend everyone to get this lens. This should be in every landscape, portrait, macro, and astro photographer's bag.

I’ve only used this a couple weeks so far, but I am extremely impressed. I am not a seasoned macro photographer by any account, but a handful of the images I have taken have really impressed me. The 1.4:1 magnification is really nice, but achieving good shots at that magnification also requires manual focus, a good amount of patience, and a lot of softer focus images (throwaways). I’m having a lot of fun with this lens and finding myself looking for more opportunities to take photos. Portraits are also lovely with this, although, I’ve only taken a handful of my family so far. Autofocus and sensor stabilization are fantastic as well.The biggest drawback and negative of the lens certainly comes down to the Spherical Aberration ring, which is completely useless to me. Most people don’t find this to be a useful feature and I would have to agree. Maybe I just don’t entirely understand its application yet, but the adverse affects to the image don’t make this a worthwhile feature to me.

Great lens, hence the 5 stars. But it doesn't worth upgrading if you already own the EF 100mm f/2.8L Macro IS.

The autofocus of my ef version of this lens started to fail, so I replaced it with this RF macro. Immediately the fist difference I noticed is that the autofocus is practically silent on this lens, but that doesn’t improve image quality. I think image quality is about the same between the two lenses. Where the RF stands out the the spherical aberration control ring. You can play around with bokeh and get absolutely stunning results that you could never get with the ef, especially with night photography. If you take Christmas pictures at night and you like to make bokeh in the background, this lens will knock your socks off because you have control over how sharp/well formed the bokeh is. You can make it soft and ethereal, or go for sharp, crisp bokeh light spheres. All the videos I watched on this lens said “you’ll probably never use the SA control ring”. Turns out it’s a great feature.