Is a 18mm EF-s lens a true 18mm on a crop sensor body ? I want to buy the “Sigma 18-35mm F1.8 HSM ART EF-S lens” for my Canon R7 crop body but I’m confused if the 18mm label is correct. Do I have to multiply by 1.6 for correct focal length ? submitted by /u/A9aNa9A

16 vs 18mm (24 vs 27mm FF)? Is the difference between 16mm and 18mm focal length (APS-C) noticeable? Let’s say they’re two zoom lenses, one with 16mm and the other with 18mm at the widest submitted by /u/MrCoffee0996

Canon EF-S 24mm f/2.8 STM vs 10-18mm f/4.5-5.6 STM I have an 18-55mm kit lens that I don’t use. My only other lens (also my main) is the nifty fifty. I’m debating now between the pancake and the 10-18mm. Which would you suggest? For photos, not video. submitted by /u/BoofingBabies

Can a lens with a 18mm-55mm range be deemed a “nifty-fifty”? New to photography and I have been gifted a Canon 18mm-55mm range EFS lens for my old Canon. If I turn the dial to around 50mm, is that deemed appropriately “nifty-fifty”. Sorry if this question is torture. submitted by /u/BLUNTYEYEDFOOL

Budapest shot on xt5 18mm 1.4 // any obvious notes for me? submitted by /u/pr1mo

10-18mm Canon Walk First trip out with my new 10-18mm (70d) what do you think? Not sure if they are sharp ? Hand held all at f11 aperture priority. submitted by /u/bigstevehardy