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RF 24-105/4 vs 24-240 for hiking

Started May 24, 2021 | Discussions thread
MikeJ9116 Veteran Member • Posts: 6,955
Re: 24-105mm

Royd63uk wrote:

I love my 24-240 it's a very good lens and mine certainly is not weak past 150.

I agree. It certainly isn't as good as a 70-200mmL lens but it is far from bad and is quite good in my experience. Also, aside from the corrections at 24mm is isn't that far off from the 24-105mmL lens through its range. Even then it isn't all that horrible at 24mm with the extreme corners the only areas that are affected all that much. Also, the f-stop table for the 24-240mm isn't all that far off the f/4.0 of the L lens in the 24-104mm range as shown below.

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 24-26mm you lose nothing, from 27-43mm you lose 1/3 stop, from 44-69mm you lose 2/3 stop and one stop from 70mm-104mm. 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. Since hiking is mostly done in daylight conditions the small difference in f stop is inconsequential.

Add in that the 24-240mm has excellent IS and AF and it is an extremely good walk around, hiking and general purpose lens. There is a strong argument to pick it over the 24-105mmL. IMO, what it gives up in the 24-105mm range to the 24-105mmL lens is more than made up by the additional 135mm reach it provides and the IQ it delivers in that range.

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