RF-S 18-45 MTF Chart

MikeJ9116 wrote:

RDM5546 wrote:

MikeJ9116 wrote:

RDM5546 wrote:

MikeJ9116 wrote:

RDM5546 wrote:

MikeJ9116 wrote:

RDM5546 wrote:

MikeJ9116 wrote:

cocoanud wrote:

Stig Nygaard wrote:

But yes, the EF-S 15-85mm is a great lens. A pretty much perfect balance between versatility and optical performance.

Thanks for pointing out that lens. Have been using Canon only since early 2021 so a recent convert to Canon and didn't realise a lens like this existed in the EF-S mount.

Would the extra reach of the RF-S 18-150 be beneficial at all ?

Comparing the two lenses, the 15-85 is quite a substantial lens at 575g (+ the EF-RF adapter) which puts it almost in RF 24-105 or RF 24-240 weight class.

I own both lenses and the EF-S 15-85mm is a good bit smaller and lighter than the 24-240mm. I can carry it easily for a day where the 24-240mm can get heavy after a while. IMO, the 15-85mm is arguably the best non L EF or EF-S canon made for use on an APS-C camera. It is addicting for its great focal length, very good IQ, sharpness, fast AF, very good IS and small size and weight. I also own the EF-S 17-55mm and while it is very good its just too heavy to carry around for long periods of time and its range is too limiting for me.

I am getting more and more interested in the R7 really but looking at lighter weight lenses as well.

I am thinking RF-S 18-150 and have read and heard good things about the EF-S 10-18mm lens for wide angle. At 16mm eq. not quite as wide as the DxO PL4 converted RF 16 but still 16mm is plenty wide any day. And even with the RF adapter it will be pleasantly light.

I have the EF-S 10-18mm and it is a very good lens. It is small and lightweight. I can say that having a 15mm wide end on a standard zoom is way better than 18mm. But then so is having another 65mm on the long end.

(Also, both R7 and R10 now are able to stitch panos in-camera so ... might not really need a UWA.)

My problem with stitching is you end up with weird aspect ratios for the finished product. Using a lens like the 10-18mm preserves the aspect ratio and gives an even greater panorama effect (i.e. vertically taller shots) when stitching images together.

I might like the EF-S 10-18 for cramped spaces. However I will wait for the RF-S mount.

I an set up fairly well to use the R7 right from the start. I have had the R for a couple of years plus a couple of RF to EF adapters. I'll use the EF-S lenses until Canon fills out the RF-S line. I might end up using some of the EF-S lenses like the 15-85mm and 17-55mm forever.

You are well set up the EF-S 15-85 is a great lens and it may be what I use. I got the RF 18-150 lens despite the unknown lens IQ because the MTF chart looks good and in the kit it was only $400. The 18-150 is incredibly small and 530g incredibly light in comparison to my excellent IQ EF-S 15-85 heavy 2 pound alternative.

The EF-S 15-85mm is only 575g or 1.27 lbs. The EF-S 17-55mm is a little porkier at 645g or 1.47 lbs. It looks like the RF-S 18-150mm is only 310g or 10.9 oz.

1.27lbs does not include adapter EF-S requires. I put it on scale with adapter filter and lens caps. The RF-S 18-150 IS VERY lightweight!!⁷

Good point.

I made a total weight chart including R7 weight for some of my various current lenses I might use with the R-7. Some use adapters and a couple my include a speedbooster

THe RF-S/R7 at 2 lbs is amazing. RF 100-400 s 2.7 as is the EF 70-300 II nano motor lens. The amazingly sharp EF 70-300 f/4.0-5.6L is a lot heavier at 4.0/4.1 lbs. The Viltrox R3 speedbooster takes advantage of the whole FF lens and allows exposing at 1 stop lower ISO providing some benefit from the 4.1 lb weight.

I will pick up the RF 100-400mm when it hits Canon's refurbished site and is reduced. I got the RF 24-240mm there for $609 shipped. The 100-400mm is what I like these days in a lens. That is decent performance while being small and lightweight.

The RF 100-400 is a very lightweight lens.  My limited usage so far has shown it can produce good IQ.

Despite the weight I do expect to use the R7 a lot with the bulky RF 100-500 lens for more reach even sometimes with the extenders.  The lens configuration choice for me depends up the subject matter of the day and the length of time the lenses are carried.  Travel preferences are quite different from my regular camera use.   For the important wide angle shots I will use a FF camera like the R5 or 5DIV.  My EOS R may be sold along with some of my older DSLRs.