Never ever try a PRIME lens.. Going back to a ZOOM, you get too obsessed w. IQ

davel33 wrote:

I have a few questions if you dont mind

#1 Do you crop a LOT, size and how often ?

#2 When you made this comparison how much did you enlarge them, 100% ?

#3 What res is your monitor ?

I use two Asus ProArt 24" at 1920 x 1200 = 2,304,000

My R6 has a 20mpx sensor 5472 x 3648 = 19,961,856

My Canon photo printer will print 13x19 at maybe that res at max dpi, I would have to check but the amount of ink would bankrupt me

BUT I do sorta agree with you When I bought my R the first lens's were all primes rf35 rf1.8, rf 50 f1.8 and RF 85 f2.

I like to do my composition in camera as much as I can which can be hard to do with primes.

I am asking because I was an electrical engineer and one thing that I had to learn the hard way is a closed mind never gets better**, so I ask a lot of questions

Thank you

Dave

** Your mind is like a parachute it MUST be open to work

Hi Dave,

Yes, I was doing "pixel peeping"

32inch 4k Monitor and yes at 200%

Yes, yes, I am at fault, I confess...

Still, my PRIMES (all of them) did shine more from F/4 to F/5.6 compared to my EF 24-105 F/4 IS Mk ii

But a 2nd batch of test with these 2 parameters changed are interesting too:

- In order to give an advantage to the zoom and benefit from IS, I did reduce the shutter speed for pics with my EF 24-105 F/4 IS Mk ii

- I also included tests at lower apertures as F/8

Both new parameters made the EF 24-105 F/4 IS Mk ii results look more interesting

For what it is worth, following my own humbles tests, UPDATED RESULT:

• All my primes are much better at normal or high shutter speed than my EF 24-105 F/4 IS Mk ii
• Apart from focal flexibility.. obviously... I will now consider my usage of my zoom EF 24-105 F/4 IS Mk ii for the following scenario: Slow shutter speeds thanks to IS and low apertures F/8 and less

My primes tend to be "old" ones without IS, so yes, this is not a perfect test of a new prime with IS vs a new zoom with IS

Rgds, Gaul