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Messages - TWI by Dustin Abbott

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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:

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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

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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.

64
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.

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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.

66
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!

67
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

68
6D Sample Images / Re: Anything shot with a 6D
« on: February 03, 2014, 10:39:21 AM »
Here's another from the big Tamron:


Bison Formal Portrait by Thousand Word Images by Dustin Abbott, on Flickr

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2O7C4863-BW.jpg by ncsabkk, on Flickr


2O7C5100.jpg by ncsabkk, on Flickr


Green by ncsabkk, on Flickr


Bravo - these are some fabulous shots.  Particularly like the first and third of the series.

70
Third Party Manufacturers / Re: In-Depth Review: Tamron 150-600 f/5-6.3 VC
« on: February 03, 2014, 10:36:53 AM »
On the BIF information - I have seen the same person stirring this up on a lot of levels.  They have interacted with me personally, on my website, on a Flickr group I watch, and even on my YouTube AF review.  They are very vocal, but their observations don't seem to reconcile with what I've heard from most people (and I get at least a half dozen emails a day.)

I did a high contrast contrast, high sharpness, high key look with this bison portrait and am really pleased with the way it looks.


Bison Formal Portrait by Thousand Word Images by Dustin Abbott, on Flickr

71
Animal Kingdom / Re: Show your Bird Portraits
« on: January 31, 2014, 09:09:40 AM »
Not much of a shot but here's the twist.  It was shot using the 6D wifi from my computer in warmth while it's -20 C on the deck! ;)

However, I'm not too thrilled as I've been having problems keeping the connection and can't get it back.  Anyone have experience with this 6D wifi and know the typical pitfalls?  The EOS utility and live view shooting seems very clunky and I was getting pretty frustrated with the slowness of focus and the time transfering files to the computer etc.  Seems a mixed bag.

Jack

Jack, I'm afraid that is pretty much par for the course.  I have managed to get it work fairly well for some applications, but the refresh rate on your screen is slow, as is focus.  I suspect the focus probably works better with the 70D because of the DPAF and thus faster live view focus.  I don't know that the cold is the factor, though, as I have shot from my car for LE work with it close to -40 outside.

72
P.S.  I think the Snowy Owl shot is great.  Wish I had taken it.  I'm not a huge bird guy, but I really like owls.

73
For all of you birders, here is a pretty amazing review of the lens by a guy comparing it to the 600mm f/4L IS (original version):

http://theamazingimage.com/wildlife/field-test-new-tamron-150-600mm-super-telephoto-zoom/#prettyPhoto


The comparison images of the Red-Tailed Hawk have the bird occupying half the height of the frame. At that size, the image should be extremely sharp with fine details of the plumage visible. You can see that the head of the hawk from the Tamron is soft. All of the images I have seen at 600mm f/6.3 are soft to varying degrees, as you would expect from the measured MTF charts published by different reviewers. However, the lens gets significantly sharper at f/8-f/11 and the lens should be very sharp. So would someone please post some shots at f/8-f/11 so we can see what the lens is really capable of doing. How about it Don?


Alan, I get what you are saying, but as Roger rightly pointed out in his comparison, it is the lighting and conditions that are going to make the biggest difference.  I know what you want to see, but for many of us that have had the chance to use the lens, we simply don't have the kind of lighting conditions that are going to produce the most optimum photos.  It's January, not exactly a month cherished by photographers around the world.

The takeaway for me is that here the lens was compared to a high end 600mm and wasn't trounced and that he got a great shot tracking with the lens.

74
Here's another shot from me:


Bambi by Thousand Word Images by Dustin Abbott, on Flickr

75
For all of you birders, here is a pretty amazing review of the lens by a guy comparing it to the 600mm f/4L IS (original version):

http://theamazingimage.com/wildlife/field-test-new-tamron-150-600mm-super-telephoto-zoom/#prettyPhoto

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