Hi bros, I have a query on cropping of photos taken from FL of 200mm and 270mm.
I recently took a photo of the moon from my Canon 70-200 F4 L lens (FL @ 200mm)and cropped the photo when doing PP.
The IQ was not as sharp compared to the same shot taken from the Tamron 18-270 PZD (FL @ 270mm), same cropped size as well.
Is it due to different FL despite the Canon being a 'superior' lens than the Tamron?
Or should I get the calibration done?
I am using the 550D body.