Happy New Year Everyone!!
I would like to thank Conor for posting a question for me about the Sigma 150-600mm Contemporary lens. I've been on and off testing/experimenting with this lens, and has more testing still want to do. The lens works great with my D3000 (10mp) and D3100 (14mp) cameras, but struggles in resolution with my D3200 (24mp) and D3300 (24mp) cameras. It seems this lens works better with lower megapixel cameras, maybe up to 16mp's. If someone has a higher megapixel camera, can select in the cameras menu and choose to shoot at a smaller size/ lower megapixel and will work great!
I find the lens is prone to glares, after putting on a Sigma 95mm WR UV Filter AFJ9B0, the pictures comes out looking much better. Highly recommend! Can see this filter at the below link..
http://www.sigmaphoto.com/95mm-wr-uv-filter-afj9b0
Getting a Sigma USB Dock is a must, used for tweaking the lens and for firmware updates. Can see the below link..
http://www.sigmaphoto.com/sigma-usb-dock
For my lens, I also got the Sigma Teleconverter TC-1401 (1.4x), it works good. My lens by itself required no microadjustments to work good. If connected with the TC-1401 (1.4x) teleconverter, had to microadjust my lens to -12 on all 16 points (yes, microadjust -12 on all 16 points), then the focus is good on my Nikon. If your results is not good, try shooting at a lower sized resolution on your camera. Please see the below link for the Sigma TC-1401 (1.4x tc)..
http://www.sigmaphoto.com/teleconverter-tc-1401
Please see the link below for a picture taken with my D3000 (10mp) camera with Contemporary (at 600mm) with Sigma 95mm WR UV Filter AFJ9B0 and TC-1401 (1.4x tc)..
http://www.pbase.com/image/161005953/original
There's a camera combination I'm looking at recently, it's with the Nikon D7100/D7200 (both 24mp's) cameras. Here is the reason why, normally with the Nikon DX 1.5x crop factor, a 600mm lens will have an equivalent field of view of 900mm. But both the D7100/D7200 has the option to add another 1.3x (a tele-bump if you will), it's calculated as 1.5 x 1.3 = 1.95, and Nikon just calls it 2x. Can read more about this "1.3x crop of DX.." at the below link..
http://imaging.nikon.com/lineup/dslr/d7100/features01.htm
On the D7100/D7200 cameras, if the additional 1.3x crop is selected, the cameras can only best be shot with the resolution of 15.4mp's, which seems to be perfect for the Contemporary lens. Please see below for the potential..
D7100/D7200 (with DX 1.5 crop factor, and with the additional 1.3x crop of DX enabled = 2x) + Contemporary (shot at 600mm) = 1200mm equivalent field of view (without using any teleconverters!)
As far as I know, only the D7100/D7200 has this additional 1.3x option. I maybe waiting for the D7300 to come out maybe later this year!
Hope this has been an interesting reading for everyone.
Cheers, John