A good friend gifted me with this lens recently. I decided to give it a go yesterday with harsh sunlight and wind gusts.
The lens is compatible with my Canon EOS Rebel T5 body.
I started out with: 1/60s, F/8, ISO 100 and Manual Exposure Mode with Multi-Segment Metering.
One shot and not surprised to see the image was very overexposed, so I stopped down to the maximum F/22, took another
shot and the image was even more overexposed. I increased shutter speed to 1/125s and still the image was grossly overexposed.
I then increased shutter speed to 1/800s and the image was nearly perfectly exposed. This is my first experience with Third
Party Equipment and my first thought was perhaps my friend was playing a joke on me.
I then came indoors and tried using it in our Family Room, no flash mind you and the same situation occurred.
This never has happened with any of my Canon EF-S lenses. I wonder how a third party lens would cause such an anomaly as this.
Thanks for any and all assistance. Tony