Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary

This didnt come out to bad considering I took it from inside the house through a double pane window

Just unboxed my new lens and took it outside for a quick test (I'll hook it u to the dock later).

Seems sharp wide open at 600mm, BUT I'm not sure the OS is functioning properly. Shouldn't I be able to notice its effect (tested on setting #1), and should I be hearing a soft squeaking noise?

put that lens at 600mm and half press the shutter or the AF button if you have it set to the rear. you will notice the viewfinder lock down more stable when it engages.
the OS will make a very faint sound of it moving. You should only really notice it when its right by your head

05Xrunner wrote in post #17863328
put that lens at 600mm and half press the shutter or the AF button if you have it set to the rear. you will notice the viewfinder lock down more stable when it engages.
the OS will make a very faint sound of it moving. You should only really notice it when its right by your head

Thanks for the reply.

I am used to the IS on my 100-400 locking down, but didn't really get that sensation with the Sigma. Definitely not anything noticeable. I was definitely expecting something as good as the 100-400. I'll play around with it some more to make sure. At least the squeaking means it is trying to engage. It is faint but definitely noticeable.

I probably don't have the best technique, but not inexperienced either. Meaningless side note - I use back button focus.

there is a more lockdown look to the OS if your using Dynamic or moderate. its not as much with the standard that shipped with the lens. I owned the 100-400 for a long time and the OS in this thing isnt even a comparison between the 2 in its ability. at 400 on the Canon I wouldnt go below 1/150 to get a sharp image. with this lens I will shoot down to 1/40 at 600mm and get a good shot of something static
here is what the OS sounds like running normal. this was recorded with my Tascam DR05 gain turned almost all the way up and then in adobe premier DB cranked up as well. it was held about 3/4" away from the lens body
https://drive.google.c​om …zSWtBQm8/view?u​sp=sharing

05Xrunner wrote in post #17863349
there is a more lockdown look to the OS if your using Dynamic or moderate. its not as much with the standard that shipped with the lens. I owned the 100-400 for a long time and the OS in this thing isnt even a comparison between the 2 in its ability. at 400 on the Canon I wouldnt go below 1/150 to get a sharp image. with this lens I will shoot down to 1/40 at 600mm and get a good shot of something static
here is what the OS sounds like running normal. this was recorded with my Tascam DR05 gain turned almost all the way up and then in adobe premier DB cranked up as well. it was held about 3/4" away from the lens body
https://drive.google.c​om …zSWtBQm8/view?u​sp=sharing

Thanks again. I will hook it up tonight and report back. My browser doesn't support the audio file, but I'll listen to it later. I appreciate the help.

yea it needs to download to let windows audio player run it.

You will notice a tremendous difference if you change the OS to dynamic.

Interesting to see the difference between South Carolina and Montana!

Edit: After posting this, I got to thinking...is the difference in rotation mostly due to our difference in location, or is it just because our cameras were pointed at slightly different angles??

IMAGE LINK: https://flic.kr/p/D7Wz​Ru

I'm not smart enough to know, David, but my guess would be camera angle. This was taken on the beach near Myrtle Beach, SC. Tripod, portrait orientation, pointed almost straight up.

In Hawaii it look like this.

IMAGE LINK: https://flic.kr/p/Dbux​5V

Well after my earlier post to this thread, one of my other shots with the Sigma from the airshow I shot has been selected for the best of gallery.

Photo from BigAl007's gallery.
Image hosted by forum (759773)

I used the dock to set the OS at dynamic, and it seems to be working fine. Thanks again.

As I said before, I'm looking for something to get more pixels on the International Space Station. I tested the lens out 2 nights ago, and I am impressed. Very sharp! I tested it with a Kenko 1.4 tc and was very happy.

Then, I got cocky, and replaced the 1.4 with a 2x tc. I must say, I was very pleased with the result.

Here's the image straight out of camera, followed by a slight crop and processing. Pretty good for an effective focal length of 1,920mm!

edit: (No ISS in these photos) Had a great opportunity tomorrow night, but we've got clouds for the next two days.

IMAGE LINK: https://dougmoon.smugm​ug.com …SOOC-5342-XL.jpg&lb=1&s=A

IMAGE LINK: https://dougmoon.smugm​ug.com …ed-5342-2-XL.jpg&lb=1&s=A