Thankfully Reikan understands this frustration and makes the calibration process much simpler. I know for sure if I had to use one of those 45° angle charts it wouldn’t take me long to smash it to pieces. Goes without saying nobody likes doing this given a choice.ĪFMA capability immediately gave birth to a slew of tools that help perform manual calibration more accurately but are at best products that leave many users confused. Until the day Canon and Nikon began equipping dSLRs with Autofocus Microadjust (“AFMA”) capability, focus accuracy issues had been an incredibly frustrating to deal with that required returning both body and lens to respective service centre for calibration. For the latter, issues involving focus issues are a hit and miss. Sensor dust is a subject that has been talked to death and is very much an unavoidable part of living on planet earth. No matter what digital SLRs you own or exist today, two nagging issues continue to plague owners - sensor dust and autofocus accuracy.