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Does my 16-55 have an issue?

Started Feb 18, 2020 | Discussions thread
allemania
OP allemania Regular Member • Posts: 148
Re: Does my 16-55 have an issue? // Perfect alignment

Rightsaidfred wrote:

Can look at the details only later, but as far as I can see, you did an excellent job in alignment of your setup!

I do very similar tests at the time with my lenses, I was a bit shocked to discover a decentration 15 months after purchase. There are two current threads by me. In the meanwhile, I've come to the conclusion that an exact image frame on the chart is key for proper alignment. If all the 90° angles are correct which takes a lot of time, the alignment is perfect.

Keep going!

Thank you!

Indeed, alignment was definitely a challenge. I never got it "perfect" but eventually hoped that the alignment I achieved was sufficient for the purposes of this comparison.

Interestingly, it was more challenging to align the chart for the 16-55 than the 18-55. Also, you may notice that the 16-55 image has a noticeable curve downward in the center of the top horizontal edge. I tried to compensate for this but never succeeded. The 18-55 didn't have this issue. This was another of my concerns with the 16-55. Perhaps it's the nature of its design rather than a malady.

 allemania's gear list:allemania's gear list
Olympus E-M5 II Fujifilm X-T10 Sony a7R II Fujifilm X-T20 Fujifilm X-H1 +14 more
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