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Messages - TWI by Dustin Abbott

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196
Third Party Lenses (Sigma, Tamron, etc.) / Re: Samyang 14mm f/2.8 IF ED UMC
« on: February 08, 2014, 03:23:30 PM »
From a recent trip to Kuala Lumpur.

That top shot is really killer.  Fabulous work!

197
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 08, 2014, 03:20:56 PM »
Mine arrived yesterday and my initial impression is that It's well worth the money. It handles well and fits nicely on the 70d. Really big lenses dont match well with a smaller body like that but this one seems just right.The IQ is what I expected,  really good to 400 and good to 600 same thing for the af.  I think the sigma 120-300 with the canon tc's is still better but this lens is 1/2 the weight and less than 1/3rd the price (1/4th if you add the cost of the converters) if you are looking for a packable high quality long zoom with an attractive price then I don't see how you could do much better, I am very pleased so far.

...are you saying that the Sigma 120-300 is better than the tamron at 600 ie  600/5.6  - or 600/8?

Yes, I read that review which is not very complimetary. That goes against most other reviews and my own experience with the lens. I also looked at a lot of samples with this lens and the sigma 2x converter and by all accounts the new lens did not perform as well as the lens it replaced  which is odd because the new lens is sharper.
I decided to try it with the promaster, kenko, and canon tc's. The kenko and canon 1.4x work really well. The kenko/promaster 2x is sharp but it has metering problems. The canon 2xiii gives much better results than what I saw from the sigma 2x samples?

From using both the sigma and tamron lenses I would say that using the bare lens the sigma is hands down better and its f2.8
Using the canon 1.4xiii or kenko 1.4x the sigma is better and its f/4 420
Using the canon 2xiii the sigma and tamron are pretty close and that's a plus for the tamron in cost and weight.
I still think the sigma with the canon 2xiii gives better results at 600 but its not a huge difference.



My benchmark is the 300mm f/2.8 II +TCs, and I'll compare it with the Tammy when I return on Monday and open my Tammy parcel, which was delivered yesterday. According to TDP, the Sigma with 1.4xTC at 420 stopped down to 5.6 looks as good as the Canon +1.4xTC at 420 and f/4, which is really very good. At 600mm with 2xTC, the Sigma has to be stopped down to f/11 to rival the Canon at f/5.6. If the Tammy at f/8 or f/11 at 600 is as good as the Canon at 600, I will be overjoyed.

The Tammy is meant to be for me a lighter lens for travel and when I need a zoom. The Sigma with the TC weighs about 3.7 kg compared with 1.9 for the Tammy. And is not an alternative.

420 f/5.6 vs f/4
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=844&Camera=453&Sample=0&FLI=6&API=3&LensComp=739&CameraComp=453&SampleComp=0&FLIComp=1&APIComp=1

600 f/11 vs f/5.6
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=844&Camera=453&Sample=0&FLI=7&API=5&LensComp=739&CameraComp=453&SampleComp=0&FLIComp=2&APIComp=2

Wow, that combo must be pretty hefty.  The Tamron isn't particularly light, but is literally half the weight.

198
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 07, 2014, 05:58:51 PM »
Here's a close-up of a boar's face.  It has been processed, and purposefully slightly oversharpened to emphasize the bristle texture.



May I enquire what was the focal length/aperture of that photo?

Off the top of my head, I believe it was 329mm and f/8.  DOF is still pretty narrow at that distance (about 15 feet).

199
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 07, 2014, 02:00:06 PM »
Here's a close-up of a boar's face.  It has been processed, and purposefully slightly oversharpened to emphasize the bristle texture.


200
So is this a fault Tamron have addressed with newer batches?

I actually don't know that for certain, but I haven't heard anyone complain about this issue recently.  I assume that they have corrected it.

201
Regardless of the warranty and customer care after purchase. A product should work as described out of the box, not need to be sent back as soon as you purchase for an updated chip to be installed to stop it draining the battery. A lens that is not a perfect match for your camera is fairly normal which is why there is AFMA. Apples and oranges.

Perhaps you should have a look at this now 14 page thread:  http://www.canonrumors.com/forum/index.php?topic=15231.0;topicseen

I completely agree with you in theory, but having issues with a lens is hardly unique to third part manufacturers.  My lens was out of my hands and with Tamron for about 8 days.  It has worked flawlessly after the fix and has been my most used lens out of a kit of excellent lenses.  To each his own...

202
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 06, 2014, 02:07:10 PM »
I have got the lens 2 days back and am initially happy. Basically I don't expect an  IQ equivalent to my 500 f4 . It is a very good lens for the budget. I opted for this because I am struggling with my old 100-400 over reach. Iq wise the new Tammy is almost as good as the 100-400 and the extra reach is welcome for a day to day use . The only thing I can complain is a little slower auto focus  when it is focused on the other end. Ev en with flying birds I feel OK with the lens. This is an example of the flying rock pigeon with the exif data....

Canon    EOS-1D X
06/02/2014 8:44:58 AM
Manual Exposure
1/2500
7.1
Evaluative Metering
ISO1000
TAMRON SP 150-600mm F/5-6.3 Di VC USD A011
600.0mm
RAW
Auto WB
AI Servo AF
Low-speed continuous shooting

Great feedback and a nice shot.

203
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 05, 2014, 09:40:48 AM »
Here is the crop of the subject from the shot above with a little more exposure added to it:

204
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 05, 2014, 09:38:22 AM »
For those wanting to see resolving at distance, here's an example of Arctic wolves.  I want to preface this post by saying that I don't believe this represents optimum conditions for sharpness.  I was shooting from a vehicle, with a serious temperature variation, and my shutter speed is only 1/250th here.  The lighting situation was pretty challenging with the subject in shadow.  Still, I think it demonstrates that focus was good (although this shot was stopped down to f/11).  I was at least 150-200 feet away when shooting:

205
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 05, 2014, 09:28:31 AM »
Here's a 600mm shot, f/9, handheld from a vehicle shooting into a pack of coyotes:


Coyote @600mm by Thousand Word Images by Dustin Abbott, on Flickr

206
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 04, 2014, 03:33:36 PM »
I'm still very much interested in this. But have yet to find the time to my local camera store to chat to an assistant about it and the price.

When some of you mention about needing time to learn how to use a 600mm lens. Are you mainly referring to the desire/need for a tripod or monopod? The difficulty of handholding? Up to now the longest lens I have used has been 300mm. Just curious as to what I would be in for if I pull the trigger and buy it.

There are few challenges.  Motion blur is much more of an issue at 600mm than it is at 300mm, so despite the great image stabilization you have to learn to get your shutter speed up higher.  Framing and tracking at that length requires a bit of retraining of the way you visualize.

There are other factors, but those are the biggies in my mind.

207
I never considered the Sony software options, the timelapse ap sounds pretty cool.
Here is one I made today morning ... actually I didn't, the camera did  :) ... all I did was put the camera on my office windowsill, lens tilted upwards with the help of a lid (of a Jam bottle), went into the menu selected "Sunrise Timelapse" from the application list and let the camera do its thing ... this is unedited footage, straight from the camera (other then whatever youtube does to it while uploading) ... did not use any PP or editing software (I pulled out the SDXC memory card from the Sony a7, inserted it in the laptop and uploaded it to youtube).
By the way, this is a dry and dusty desert country, so we don't get any magnificent sunrises that one gets to see in most countries ... in fact what you see in this video is one of the very few good days that we have in a year.
Short Timelapse with Sony a7+28 70 f:4 lens Straight out of the Camera

That is very, very cool to be able to do that in camera.  I'm impressed.

208
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 04, 2014, 01:20:52 PM »
With all due respect Don testing a 600 lens at 20 feet is a bit ridiculous - IMO!

I agree.

I intended to test it at about 100 feet, but it was -26C and windy outside... I am going to retry the test the next nice day that I am home.... I was thinking of a bird-sized target at 100 feet and then another target at around 300 feet, plus trying some additional F-stops....

Don, take heart :)  People love to criticize without much consideration for reality.  Doing long range tests in Canada in January/February are difficult at best.  You have an indoor limitation of how much space you have.  Going outdoors introduces a lot of other factors.  I appreciate seeing these results, and I seriously doubt that such a lens is optimized for short distance.  FoCal recommends doing AFMA at 12meters for 600mm, and have a pretty scientific explanation for that.

I'm interested in seeing your further tests, but I reject the notion that your current test has no value.

209
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 03, 2014, 07:21:59 PM »
I am looking forward to trying out this lens.

If you get a good copy I think it might be as good as 300/2.8 IS (and maybe IS2 on a good day) with converters AT 420 and 600 without the darned inconvenience/extra cost. To get a half decent 600 with the 300/2.8 IS you have to stop down to f8 anyway.

I'll give a comparison with the 300/2.8 II +TCs when my Tammie arrives after next weekend. I'll even show my favourite medieval brick chimney for Mac.

LOL!  We'll be breathlessly waiting!

210
Third Party Lenses (Sigma, Tamron, etc.) / Re: Helios 44-2 58mm f/2.0 M42
« on: February 03, 2014, 10:41:12 AM »
Here's a wide open Helios 44-4 shot.  I find it has a bit less micro contrast than the 44-2, but also functions perfectly on a full frame body (no mirror hang).


Out with the Old; In with the New by Thousand Word Images by Dustin Abbott, on Flickr

Hello Dustin,

I also have a 6D and am interested in the 44-4 version. What adapter to you use?

Thanks!
Andrew

I just use a cheap AF Confirm adapter off Ebay.  I paid no more than $10-12

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