For landscapes, 70-300 or 100-400?

Started 9 months ago | Questions thread
Impulses Veteran Member • Posts: 8,331
Re: For landscapes, 70-300 or 100-400?

Rol Lei Nut wrote:

johnpul wrote:

Rol Lei Nut wrote:

vwcrusher wrote:

Thanks for the posts. For my anticipated use (landscapes) I will most probably be utilizing a tripod for either lens. In general optical clarity is more important to me than weight. I just wonder in most situations when a telephoto lens is desired, will I see any difference between these two. I should note that I tend to print fairly large (2x3ft).

You make an interesting case for both I admit....I decided on the 24-105 f4 because for what I photograph I really didn't need the extra speed f2.8 provides, plus I was not giving up any clarity. Even with the tripod, while walking I would only need the two lenses (24-105 and 70-300). Note: someday a wide zoom. This is especially true given the aggressive price of the Tamron.

Interesting...does this make any sense? What factor have I not anticipated?


Tripod: the 70-300 has no tripod ring, nor any space to mount one. It's really a handheld lens which depends on the camera's IBIS for stabilization (its real drawback).

The 100-400 doesn't come with a tripod ring, but one can be bought (expensive original or not cheap aftermarket).

So for tripod use, I'd definitely say the 100-400, even if the 70-300 might be a little bit sharper in most situatons. Though with 2x3 foot prints you probably won't see any difference (both good lenses).

On a tripod, be sure to turn the 100-400's stabilization off, as it really seems to cause framing differences and probably sharpness loss, unlike many other OS lenses in practice.

I’d argue that the 70-300 is light enough that you don’t need a tripod ring for use on a tripod. The camera’s mount alone would be fine.

Archimedes once said "Give me a long enough lever and I'll move the World."

At 300mm, the Tamron extends almost 21cm from the body, not counting its lens hood. With such leverage, the smallest vibrations will be amplified and an accidental knock could cause damage to the mounts.

I put such use in the "emergency use" category, which might work sometimes but isn't reliable and could be risky.

Yeah, even in ideal conditions a collar makes for way nicer handling on a tripod, less instant sag when loosening the head, etc.

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