I have both and they both produce excellent results and I also find no significant image degradation with a Sony 1.4x converter on the 100-400. I find the 200-600 more convenient when wanting more reach simply because I don't have to put on the converter, but on the other hand, the 100-400 is lighter and easier to manage. I was skeptical of the 200-600 for some time because I was not getting tack sharp images, but I think it was due to operator error, perhaps because of the weight. But I have to say, during a recent trip to the Falkland Islands, I used it a bunch and got some excellent results. There is talk by some however that some of the copies of the 200-600 may "off" a touch so should you decide on this lens, it would be a good idea to put it through its paces to verify it is a good copy, which you should do with any lens. Anyway, they are both good lenses and I find the Sony teleconverter excellent. You can't go wrong. Here is an example of and image taken with the 200-600 but keep in mind this is relatively low quality jpeg. The original processed raw file is better.

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Lovely as usual but I love the Sandhill drinking and the soft birds in the background. Those long primes can create some wonderful backgrounds. Thanks for sharing and I'm looking forward to seeing some of your stuff from Costa Rica. Falkland shots coming!

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I might watch that several times. Made me smile all the way thru!

Thanks Mike. If I had to choose a place to do landscapes, I think it would be SE Utah. It's just beautiful everywhere you look. You are lucky to live there. But I still need to find a way to keep my hands warm when trying to operate the camera.

A spectacular morning in SE Utah standing on a great overlook of a fascinating "moon"scape. It was cold! Hope you enjoy!

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Thanks for the post and the catch on the dust. I caught later. I am new to merge vs HDR and hence the question. I continue to play with the image and yes, I agree on the contrast. I'm working on it.

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Great catch. This guy may have sequential deployment of landing gears.

Lucky you! You had the girl, and the car! Congratulations on still having the girl. A keeper!

👍. Love the last one with the bird looking right at you. Wonderful background and like the bird offset just a bit!

Nice. My favorite would be #1; great sky and with more space in the bottom of the frame, the pelican has somewhere to go.

All great, but I like #4 the best. Just a thought however if you allow me. Every image has the subject right in the middle of the image. Ever thought about a bit of an offset allowing somewhere for your subject to move?

This is an interesting location. The "Hodoos" create a challenge to find individual examples of the fascinating geological formations to photograph and I think this is a good example. I chose to take a three shot image, one EV from normal, with the idea of creating an HDR image, but rather than using the Photoshop option of creating an HDR, I elected to do a photo merge creating a layered "smart object" from three exposures and then editing the layered images into a smart object processed in Adobe Camera Raw. Using this process, I think I can manage the highlights a bit better. For those of you who do a lot of HDR images, I would be curious what you think of the photo merge option vs HDR processing. I like the image, and would appreciate your thoughts not only on the image, but the process as compared to a conventional HDR approach.

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This is a great collection. Thanks for sharing!