The 'All Canon EF-M lenses' club

nnowak wrote:

Sittatunga wrote:

nnowak wrote:

Sittatunga wrote:

Maxmolly7 wrote:

MAC wrote:

Maxmolly7 wrote:

My remedy for wide coverage is a Sony RX10IV which covers 24-600mm ff and, for my usage the output of the 1" senor is good enough. I shoot my photos for my private output and not for bragging on any internet website.

$1698 too steep for me

Steep? May be looked at it by itself but you get body plus "fast" lens.

8.8-220 f/2.4-4. That's equivalent to 24-600mm f/6.5-11. "fast"?

Do you know of another 25X zoom that is faster?

I don't, there is no such thing as a good, affordable 25x zoom that is fast by normal standards. Perhaps that's why Maxmolly7 used ironic inverted commas.

Please remind me, what was the price of a R7 with 24-105 and 100-400??? And where is the ff 24mm coverage?

The R7 is in a different league for price, size (with the big zoom, but not with the 16mm prime), and speed. The 16mm f/2.8 is close to FF 24mm coverage, but its 26mm f/4.5 FF equivalent is the 1" equivalent of 9.5mm f/1.7, 2½ stops faster than the Sony.

You double counted the equivalence. There is only 1.25 stops difference on the wide end. Using the 100-400mm f/5.6-8 for the long end puts you 1/3 of a stop behind the RX10IV.

I took the long way round, because a lot of people use the 35mm film format as a reference frame, but I didn't double count. The equivalence between Canon APS-C (22.3×14.8) and 1" format (13.2×8.8) is 22.3mm/13.2mm, roughly 1.68 crop factor. 16/1.69 = 9.5mm, 2.8/1.69 = 1.7. That's 2½ stops faster than f/4,

You were doing fine up until this point. Why are you comparing f/1.7 versus f/4 or f/4.5. Really simple... based on sensor area, the Sony 1" sensor is 1.6 stops slower than Canon APS-C. At the wide end, the Sony lens is f/2.4 whereas the RF 16mm is f/2.8. This puts the Sony lens 0.5 stops faster than the Canon lens. 1.6 - 0.5 = 1.1

I rounded up to 1.25 stops.

If you want to do it your way, you should be looking at the difference between f/1.7 and f/2.4.

Fair cop, I forgot about the variable aperture. The 16mm f/2.8 cropped to Canon APS-C is still equivalent to a 9.5mm f/1.7 lens on a 1" sensor (or a 26mm f/4.5 on full frame). That's effectively 1 stop faster than the 8.8mm f/2.4 zoom. The Sony is still a huge camera for its sensor size.