Sigma 150-600 Garbage

jcdeboever · Feb 28, 2016

I am so irritated right now, doesn't help desktop web site won't work for download. Roughly 50 yards away. Not sure if it's lens, me, camera, or both. Not sharp at all in my opinion. #1 shot on tripod, OS off. #2 hand held and OS1 and 2 tried no difference. Dont here any noise from OS. Not in custom setting. Hooked up lens in dock, no firmware update.

#1

#2

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480sparky · Feb 28, 2016

Autofocus? Try manual focus. Maybe it's front- or back-focusing.

jcdeboever · Feb 28, 2016

#1 cropped

#2 cropped

jcdeboever · Feb 28, 2016

480sparky said:
Autofocus? Try manual focus. Maybe it's front- or back-focusing.

I can but if this is what I get with auto focus, I don't want it. What's the point if I may ask respectfully?

Do you see the lines in the bokeh on the cropped images? not digging that either.

well, I guess the lines are the siding on the house after closer inspection.

pixmedic · Feb 28, 2016

jcdeboever said:
480sparky said:

Autofocus? Try manual focus. Maybe it's front- or back-focusing.

Click to expand...

I can but if this is what I get with auto focus, I don't want it. What's the point if I may ask respectfully?

Do you see the lines in the bokeh on the cropped images? not digging that either.

it will tell you if the lens can achieve focus.
maybe the difference between a glass issue and an AF issue.
it might not make any difference to you at all, but it may help expedite the return process by narrowing down the issue a little for the techies.

Designer · Feb 28, 2016

The jittery OOF doesn't look like a lens artifact, but could be a vibration in the entire setup. Shutter, mirror, wind, or ?.

jcdeboever · Feb 28, 2016

Manual is even worse if that means anything. Do you guys see what I am seeing as far as quality?

jcdeboever · Feb 28, 2016

Designer said:
The jittery OOF doesn't look like a lens artifact, but could be a vibration in the entire setup. Shutter, mirror, wind, or ?.

It does it on tripod as well. I have no way to tell if OS is working or not... Shooting from inside with slider door open. It is windy out. Is there a way. The focus point is dead on according to the Nikon windows software.

480sparky · Feb 28, 2016

jcdeboever said:
480sparky said:

Autofocus? Try manual focus. Maybe it's front- or back-focusing.

Click to expand...

I can but if this is what I get with auto focus, I don't want it. What's the point if I may ask respectfully?
.......

It's a by-product of mass-production. If the lens is front- or back-focusing, that can be corrected with many Nikon cameras in-body.

jcdeboever · Feb 28, 2016

480sparky said:
jcdeboever said:

480sparky said:

Autofocus? Try manual focus. Maybe it's front- or back-focusing.

Click to expand...

I can but if this is what I get with auto focus, I don't want it. What's the point if I may ask respectfully?
.......

Click to expand...

It's a by-product of mass-production. If the lens is front- or back-focusing, that can be corrected with many Nikon cameras in-body.

Well, the manual was worse but overall similar. I don't think my D3300 can correct this, am I correct?

jaomul · Feb 28, 2016

Try live view with all other settings same on your camera. This will tell you if its the focus or not most likely. I'd be surprised if you could manually focus well at 550mm unless bolted to the ground. By any chance were you on a tripod with OS switched on?

480sparky · Feb 28, 2016

jcdeboever said:
Well, the manual was worse but overall similar. I don't think my D3300 can correct this, am I correct?

If my failing memory serves, I don't think the 3300 has that ability.

Where did you buy it from? Perhaps contact the seller and request a replacement.

jaomul · Feb 28, 2016

The d3300 does not have af fine tune, but this is one of the reasons the new sigmas can be adj with a dock system

Gary A. · Feb 28, 2016

Sometimes you just get a bad lens. I know a few photogs who send lenses back three+ times until they're happy. I have acquired a ton of lenses over the course of my lifetime and I've never sent one back. I don't think the IQ is acceptable. I don't shoot Nikon. But if this was a Canon, I'd take it down the street to the Canon repair facility in Irvine and in a few days it would be fixed.

If you shot mirrorless, you'd haven't any front/back focus issues.

PS- How do you golf in the snow? (I'd think those little white balls you chase would easily blend into the ground cover.)

jcdeboever · Feb 28, 2016

jaomul said:
Try live view with all other settings same on your camera. This will tell you if its the focus or not most likely. I'd be surprised if you could manually focus well at 550mm unless bolted to the ground. By any chance were you on a tripod with OS switched on?

No, you can see it in the settings that OS was off when on a tripod. I tried live view, no difference.