Best lens for a Sony a6400 Mirrorless ????

Started 5 months ago | Discussions
The Von-ographer
OP The Von-ographer New Member • Posts: 21
Re: Best lens for a Sony a6400 Mirrorless ????

Klaus dk wrote:

Did you see this: Tamron announces f/2.8 17-70?

At USD 799 it should be within your budget.

Yes, I have looked at that... but its not out in the market yet.. and not too many reviews on it yet.

 The Von-ographer's gear list:The Von-ographer's gear list
Sony SLT-A57 Sony a6400 Sony DT 18-55mm F3.5-5.6 SAM Tamron AF 18-200mm F/3.5-6.3 XR Di II LD Aspherical (IF) Macro Sony DT 35mm F1.8 SAM +2 more
Klaus dk
Klaus dk Veteran Member • Posts: 7,443
Re: Best lens for a Sony a6400 Mirrorless ????

The Von-ographer wrote:

Klaus dk wrote:

Did you see this: Tamron announces f/2.8 17-70?

At USD 799 it should be within your budget.

Yes, I have looked at that... but its not out in the market yet.. and not too many reviews on it yet.

Well, if your 18-55 still works, the pressure is off. There aren't that many normal f/2.8 zooms for APS-C.

Good luck and good light.

 Klaus dk's gear list:Klaus dk's gear list
Sony RX100 II Canon EOS 7D Canon EOS R Canon EF 135mm F2.8 SF Canon EF 100mm f/2.8 Macro USM +15 more
Craig Gillette Forum Pro • Posts: 11,030
Re: Best lens for a Sony a6400 Mirrorless ????

Well there are two things.  One is that if trying to to get motion stopping shutter speeds, a fast lens can be helpful.  The f1.8 prime is noticeably faster at f1.8 than the 55-210 4.5-6.3, as an example.  The 35/1.8 also has OSS which might prove useful under other uses with the A6400 which doesn't have IBIS.  I'd think shooting bicycle competitions would use faster shutter speeds to freeze the action, so OSS wouldn't be much of a help there.

In an aps-c usage, 35mm is more a mid-range/"normal" sort of focal length.  Traditionally "portrait" lenses tend to run from about 75mm or so to 135mm (in ff lengths) although 35mm is certainly usable for portraits.  .  How suitable it is to shooting bike races may depend on distance to the subjects and it may well be kind of short.  You could compare to how you used the 55-210 to see if something longer might be more useful.

Andersonm Contributing Member • Posts: 564
Re: Best lens for a Sony a6400 Mirrorless ????

To "freeze action", you need a fast shutter speed. To get a fast shutter speed, you should ideally have a low F-number.

Zoom lenses tend to have higher f-numbers, other than the more expensive ones which are still at a not very low f2.8

So you're in a not ideal situation, where you can:

- use a prime lens at f1.8 or so, and get a fast shutter speed and less blurred shots

- get a 2.8 zoom lens

- get a slower zoom lens

HOWEVER, this should be less of an issue if you are taking photos in bright sunlight. So that might save you.

 Andersonm's gear list:Andersonm's gear list
Olympus OM-D E-M5 Olympus M.Zuiko Digital 45mm F1.8 Olympus M.Zuiko Digital ED 12mm 1:2 Panasonic 20mm F1.7 II Panasonic Leica DG Summilux 15mm F1.7 ASPH
Gerry Winterbourne Forum Pro • Posts: 18,593
Re: Best lens for a Sony a6400 Mirrorless ????

The Von-ographer wrote:

Craig Gillette wrote:

With fast moving subject matter, you are likely to want fast shutter speeds to freeze motion, perhaps doing a pan now and then to get a sharp bicyclist and a blurred surrounding. Not having stabilization in either the body nor the lens won't make too much difference for that kind of shooting. The listed zooms, and others, aside from the high performance/high price 16-55/2.8 are f4 and slower (although some of the variable apertures start at f3.5 then drop.

You might want to consider a fast prime. Perhaps the Sony 35/1.8 OSS. It's got a fast aperture and OSS when useful for less dynamic subject matter/lower light. You might need to consider a longer lens depending on the situation on how close you can get to the riders. Good open daylight, a slower/longer lens might well be fine. If in trees or lower light, maybe not.

So.. you're saying i need a portrait lens with small aperture for fast speed?? ie f1.8

What you are seeing is that all photography is a compromise. To freeze motion you need a short exposure; a large aperture helps that but so does using higher ISO. An f/4 lens, such as you have suggested, is faster than the f/5.6 that your existing lenses give - but f/2.8, f/1.8 etc are faster still.

Prime lenses tend to be faster but are restricted to a single field of view, which can be either too wide or too narrow depending on where you can stand in relation to your scene. You already have a couple of fast primes (your 35/1.8 and 50/1.8) so you can easily see if they give a narrow enough field of view.

I have nothing against prime lenses - indeed, nine of the ten lenses I own are primes - but it seems to me that for the job you describe a single f/4 zoom lens is the most suitable compromise between sped, flexibility and cost.

or a zoom.... I happy to get a zoom instead.... i just assumed that they used a lower zoom for the shots and waited til riders were close. i used my 55-200.. sony recently and it was very good... still a tad bluuured on some jump.. focused on the tree and not the rider... but was ok.

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Gerry
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