Canon RF 24-105/F4 versus RF 24-240/F4-6.3?

Started 4 months ago | Discussions thread
MAC Forum Pro • Posts: 15,450
Re: Canon RF 24-105/F4 versus RF 24-240/F4-6.3?

tkbslc wrote:

RDM5546 wrote:

MikeJ9116 wrote:

From what I have read, and seen in example photos, the 24-105mm f/4 is sharper in the corners at certain focal lengths and might have slightly better color and contrast. I decided to opt for the 24-240mm from seeing examples of how good it performs considering its massive range advantage over the 24-105mm variety lenses. My copy of this lens is sharp in the center at all focal lengths and the corners are no worse than many other lenses with far less range. Even the lens correction in the corners at 24mm isn't horrible. For a 10x zoom it is an exceptional performing lens. I will be using it a lot as a travel and walk around lens. It is by far the best super zoom lens I have owned and, IMO, it really can be a one lens solution for many people who are casual shooters.

Also, I will add that there really isn't much of a loss in light capture from one lens to the other. The 24-240mm holds a f/5.6 aperture up to 104mm so you only give up a stop and 1.33 stops from 105-240mm. Here is the aperture table for the 24-240mm:

24-26mm = f/4.0
27-43mm = f/4.5
44-69mm = f/5.0
70-104mm = f/5.6
105-240mm = f/6.3

From 27-43mm you lose 1/3 stop and from 44-69mm you lose 2/3 stop. Overall not too bad considering you get an extra 135mm of reach and only give up 1.33 stops through this range compared to f/4.0 at 105mm for the L lens.

Lastly, the IS and AF (Nano USM) for the 24-240mm is very good.

I agree full with Thunderstorm: The L is slightly better for traveling as long as you don't need a long reach. The L f/4.0: 107.3mm length and 695g The 24-240mm: 122.5mm length and 750g But's not a big difference.

However I would add:

The higher vesatility of 240mm reach is a 2X in FL advantage of the 24-240 is provided for with insignificant extra weight and bulk. This is the major advantage other than price of the 24-105.

The 24-105 is weather sealed and the 24-240 is not.

The 24-105 offers video zooms at constant aperature (a big feature for me).

The 24-105mm has that all important "L series" red ring of snob approval.

Versatility comes in many forms.

24-105L lets me take top quality landscapes at the wide end. It lets me take good portraits at the long end. I can zoom in and out without worrying about exposure or ISO changing. I can shoot in worse weather because it's sealed. 105mm is plenty of zoom for the typical walkaround or travel usage. I feel like the things I'd want more zoom for, like wildlife or sports, 240mm 6.3 didn't work well anyway.

exactamundo

the RF24-105 L is the best 24-105 ever made

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