View previous topic :: View next topic |
Author |
Message |
magpi
Joined: 02 Dec 2014 Posts: 28 Location: Tynemouth, UK
|
Posted: Sun Jan 25, 2015 1:44 pm Post subject: Tair 3S vs Tamron 31a |
|
|
magpi wrote:
So, I recently (spontaneously) bought a Tamron 31a 200-500 monster. Having gotten a Tair 3S as a Christmas gift, I decided to compare the two just for fun
Firstly, size; after getting my hands on the Tair it was almost hard to imagine a bigger lens...but the Tamron really is a monster, coming in at about a kilogram heavier too.
In terms of handling, the Tair is...well, a Tair. The focus wheel on the photosniper version takes some getting used to, I struggle with it compared to the more conventional Tamron's focus ring. The weight difference isn't actually too bad (both weigh a ton) but the Tamron is surprisingly difficult to balance; I have mine mounted on a very long plate to offset the front-heaviness.
Anyway, on to image quality! Just for a quick comparison, I shot both at 300mm - below are 100% centre crops (given I'm currently shooting on MFT, edge crops seemed a little pointless ) I'm not quite sure what went wrong with the Tair at 5.6 - possibly a little floor vibration affecting the shot.
_________________ Panasonic G6, Blackmagic Pocket Cinema Camera
MF: Tamron 31a 200-500 5.6, Tair 3S 300 4.5, Vivitar (Kobori) 28-210 3.5-5.3, Canon FD 135 2.5, Vivitar (Komine) 90 2.5 macro, Samyang 85 1.4, Helios 44M-4 58 2 + focal reducer, Olympus 9 8 body cap fisheye, Peleng 8 3.5 fisheye,
AF: Olympus 35 3.5 macro, Panasonic 20 1.7 II |
|
Back to top |
|
|
Pancolart
Joined: 04 Feb 2008 Posts: 3693 Location: Slovenia, EU
Expire: 2013-11-18
|
Posted: Sun Jan 25, 2015 1:55 pm Post subject: |
|
|
Pancolart wrote:
Sorry Magp, i cannot buy your comparison . I know Tair well enough to know its abilities. And they are not shown here. _________________ ---------------------------------
The Peculiar Apparatus Of Victorian Steampunk Photography: 100+ Genuine Steampunk Camera Designs https://www.amazon.com/dp/B0B92829NS |
|
Back to top |
|
|
Ramon
Joined: 01 May 2007 Posts: 71 Location: Kent, UK
|
Posted: Sun Jan 25, 2015 2:08 pm Post subject: |
|
|
Ramon wrote:
Well the Tamron looks pretty good but I certainly think you need to re-shoot the Tair test, to my eyes there seems to be some inconsistencies that don't look right in that sequence of pictures. Perhaps a better subject might help because it is difficult to determine exactly which part you were focussed on. |
|
Back to top |
|
|
magpi
Joined: 02 Dec 2014 Posts: 28 Location: Tynemouth, UK
|
Posted: Sun Jan 25, 2015 2:12 pm Post subject: |
|
|
magpi wrote:
Haha I do think I need more practice with the Tair, the focus wheel frustrates me quite a bit! Sometime when the light's a bit more consistent I'll try setting up a test chart and repeating the test a little more scientifically _________________ Panasonic G6, Blackmagic Pocket Cinema Camera
MF: Tamron 31a 200-500 5.6, Tair 3S 300 4.5, Vivitar (Kobori) 28-210 3.5-5.3, Canon FD 135 2.5, Vivitar (Komine) 90 2.5 macro, Samyang 85 1.4, Helios 44M-4 58 2 + focal reducer, Olympus 9 8 body cap fisheye, Peleng 8 3.5 fisheye,
AF: Olympus 35 3.5 macro, Panasonic 20 1.7 II |
|
Back to top |
|
|
philslizzy
Joined: 07 Aug 2012 Posts: 4748 Location: Cheshire, England
|
Posted: Sun Jan 25, 2015 7:43 pm Post subject: |
|
|
philslizzy wrote:
The focus wheel is awkward using it on its own but if using it with the sniper it feels more natural. It would be interesting to see the whole image so we have an idea of the size of the crop. _________________ Hero in the 'messin-with-cameras-for-the-hell-of-it department'. Official. |
|
Back to top |
|
|
Gerald
Joined: 25 Mar 2014 Posts: 1196 Location: Brazil
|
Posted: Sun Jan 25, 2015 9:07 pm Post subject: Re: Tair 3S vs Tamron 31a |
|
|
Gerald wrote:
magpi wrote: |
I'm not quite sure what went wrong with the Tair at 5.6 - possibly a little floor vibration affecting the shot.
|
Maybe it is focus shift?
To eliminate any chance of vibration the best is to use the electronic shutter of G6. _________________ If raindrops were perfect lenses, the rainbow did not exist. |
|
Back to top |
|
|
Lloydy
Joined: 02 Sep 2009 Posts: 7785 Location: Ironbridge. UK.
Expire: 2022-01-01
|
Posted: Sun Jan 25, 2015 9:16 pm Post subject: |
|
|
Lloydy wrote:
The Tamron certainly looks sharp, very impressive. But I agree that your Tair pictures aren't representative of what it can do. A bloody big tripod is your friend with lenses of that size. _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
|
Back to top |
|
|
SXR_Mark
Joined: 12 Jun 2010 Posts: 506 Location: England
|
Posted: Sun Jan 25, 2015 9:31 pm Post subject: |
|
|
SXR_Mark wrote:
I have both these lenses and I have test chart results for both though they were taken at different times. I would say they are quite similar in performance at f5.6, with the TAIR being just lightly better. At f8, it would be hard to choose between them. The Tamron does perform well at 300mm, but I found performance drops quickly above 400mm. There is a thread on this forum with my results.
I notice the TAIR shots posted here lack contrast. A good hood is essential on both lenses. The Tamron has a sliding hood, so I guess that was used. Did you use a hood on the TAIR? I also use 4/3 and so can use a deeper hood than would be allowed on 35mm and that is very well worthwhile. I use a hood with total depth of about 15cm on the TAIR (actually two hoods stacked together). The Tamron in particular can suffer from veiling flare if the front of the lens gets a hint of the sun. I made a cardboard tube to fit over the built in hood that adds at least 10cm to the hood depth and it made quite a difference.
Getting reliable test results with long lenses like this (especially on 4/3 with 2x crop factor) demands a really good support. I use a very solid tripod designed for video.
Mark _________________ Olympus OM-D E-M1 for everything |
|
Back to top |
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|