New Lens.. what's causing this?

[Destin]

Hey guys, I picked up a Tamron 150-600 G2 today and I'm liking it alot so far.. no issues. Except this one anomaly that I've never encountered.

I tried taking a shot through my windshield (not ideal obviously, just curious how it would perform) and this is what I got. Obviously being caused by the windshield, but I've never had this problem shooting through a windshield with lenses (only up to 300mm though). Lens is sharp and has no issues in any other shooting situation thus far.

Exif: 1/2000, F/6.3, iso 500, 600mm.

Has anyone ever experienced this? Can you explain why it's happening?

 

[Trever1t]

it failed to find focus.

 

[Destin]

Focus was locked on the dock, which obviously doesn't mean it was accurate. But it wasn't hunting.

To me it looks alot like there is camera shake going on to some degree, but I'm at 1/2000 and was resting the camera on my dashboard.

Regardless, the longer focal length is definitely going to take some practice!

 

[SuzukiGS750EZ]

Was your car engine running?

 

[SuzukiGS750EZ]

Although, nothing is in focus. So could it have focused on your windshield inside the car and since it's a clear piece of glass still captured the image beyond it, just not in focus? I have the same lens and it's performed awesome.

 

[480sparky41 40]

Telephoto lenses magnify everything.......... including the optical deficiencies of shooting at an angle through glass.

 

[Dalex]

I'm a little confused. Were you just trying to check out the lens to see what it could do? How it performs at different settings? Just curious why you would choose 1/2000 @ ISO 500 for that image? I'm not familiar with this particular lens but was the auto focus turned on / off? Was the image stabilization turned on / off ? It looks like the auto focus didn't have time to


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[Dalex]

I'm a little confused. Were you just trying to check out the lens to see what it could do? How it performs at different settings? Just curious why you would choose 1/2000 @ ISO 500 for that image? I'm not familiar with this particular lens but was the auto focus turned on / off? Was the image stabilization turned on / off ? It looks like the auto focus didn't have time to


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stabilize. That is unless it is trying to focus on the windshield itself which could be a possibility. I would go back to the same place and try that again with a manual focus and see what happens.


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[Destin]

I'm a little confused. Were you just trying to check out the lens to see what it could do? How it performs at different settings? Just curious why you would choose 1/2000 @ ISO 500 for that image? I'm not familiar with this particular lens but was the auto focus turned on / off? Was the image stabilization turned on / off ? It looks like the auto focus didn't have time to


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stabilize. That is unless it is trying to focus on the windshield itself which could be a possibility. I would go back to the same place and try that again with a manual focus and see what happens.


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I wanted to see how it would perform in the event that I was ever driving and saw an animal in the road, and wanted to shoot through the windshield.. cars make great blinds, and often opening a door and getting out to get a photo can scare animals off.

I was shooting in manual mode at 1/2000, max aperture, and auto iso. This is a common method among wildlife photographers to ensure that your shutter speed and aperture remain where you want them, but you still get auto exposure metering for changing light conditions.

There is no way it was trying to focus on the windshield.. the minimum focus distance of the lens is over 7 feet, and the windshield was 2-3 inches away. There's no way the focus system even recognized that the windshield was there.

I'm thinking that @480sparky is correct above and this is just a magnification of the imperfections of shooting through an angled piece of laminated glass.

 

[tirediron]

Was your car engine running?

THIS!!!!

 

[Derrel]

I think Sparky has it right: the angled glass windshield, and the long focal length.

 

[Destin]

Was your car engine running?

THIS!!!!

Could you guys elaborate? Something with the VC system?

 

[table1349]

I am choosing answer D.

D. All of the Above.

 

[table1349]

Was your car engine running?

THIS!!!!

Could you guys elaborate? Something with the VC system?

VC can only do so much. It's not a photography god with unlimited powers.

 

[SuzukiGS750EZ]

As a side note about vc. Vc only works when there is shake. It can actually hurt the image if the camera is stabilised by other means such as a tripod, table, etc. A running engine introduces shake.