{"id":64735,"date":"2019-12-04T14:28:03","date_gmt":"2019-12-04T18:28:03","guid":{"rendered":"http:\/\/www.birdsasart-blog.com\/?p=64735"},"modified":"2021-12-29T13:48:47","modified_gmt":"2021-12-29T17:48:47","slug":"my-comments-on-the-sony-a7r-iv-af-for-birds-in-flight-for-adam-rubinstein-bill-hill-and-the-rest-of-the-gang","status":"publish","type":"post","link":"https:\/\/www.birdsasart-blog.com\/baa\/2019\/12\/04\/my-comments-on-the-sony-a7r-iv-af-for-birds-in-flight-for-adam-rubinstein-bill-hill-and-the-rest-of-the-gang\/","title":{"rendered":"My Comments on the SONY a7R IV AF for Birds in Flight for Adam Rubinstein & Bill Hill and the rest of the gang …"},"content":{"rendered":"

What’s Up<\/h3>\n

It is 10:23am Mountain Time and I just began typing. I am at the gate at ABQ headed for Houston Hobby and then Orlando. If all goes perfectly, Jim will be picking me up at MCO at about 7pm. After we stop for dinner we should be home about 9:30pm. I woke early to finish packing and then drove to the refuge for my last 2019 hour at Bosque. There was a nice flourescent orange sunrise despite the almost completely cloudy skies. But the fly-in was not great. On my way to the Crane Pool the colors softened nicely and I made a very sweet Zen-like image of a tree-ful of grackles and blackbirds. The Crane Pool was pretty much a grey dud; blurs only!<\/p>\n

This Just In<\/h3>\n

I just learned via text that Steve Elkins at Bedfords just received three SONY a9II bodies ready to ship free today. Be sure to use the BIRDSASART code at checkout to save $50.00. <\/p>\n

My Comments on the SONY a7R IV AF for Birds in Flight<\/h3>\n

Adam and Bill have been asking me for about two weeeks about a7R IV AF performance for birds in flight. <\/p>\n

The short answer is I have no defintive answer at this time but I am sure of this: If you do birds in flight the SONY a9 II has no equal …<\/p>\n

I have worked with the Sony Alpha a7R IV Mirrorless Digital Camera (Body Only)<\/a> mounted on the Sony FE 600mm f\/4 GM OSS Lens<\/a> for birds in flight and have done fairly well on ocassion, even with the Sony FE 1.4x Teleconverter<\/a>. That said, results with the with the Sony FE 1.4x Teleconverter<\/a> and even with the Sony FE 2.0x Teleconverter<\/a> are surreally oustanding. Again, all of that with the 7R IV on the 600 GM.<\/p>\n

Using the two cameras on the Sony FE 200-600mm f\/5.6-6.3 G OSS Lens<\/a> is somewhat of a different story. Personally, I have not done well at all for flight with the a7R IV and the 200-600. Most images are not sharp. THe factors that play into that are many. Here is what I am thinking:<\/p>\n