LENSES AND SENSORS

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The two types of sensor

Before you choose a lens, you need to know what sensor is inside your camera. The sensor is what "takes" the photo and you will get a completely different photo with a FULL-FRAME sensor and a CROP sensor - even with exactly the same lens.

For Nikon and Canon cameras, it's probably either..

  • FULL-FRAME sensor : generally found inside  professional-level cameras
  • CROP sensor : which is generally entry-level or enthusiast-level cameras
cropped and full-frame sensor.jpg

How does this change the photo?

 35mm LENS & FULL-FRAME sensor - showing the much wider view   

FULL-FRAME SENSOR & 35mm LENS

This is the photo with a FULL-FRAME sensor. You can see a much wider view - there is more in the frame.

 35mm LENS & CROP sensor - showing how the photo is more "close up"   

CROP SENSOR & 35mm LENS

This is the photo if it were shot with CROP sensor. Exactly the SAME LENS. You see a much more close-up view - there is less in the frame.

 

Which one is inside your camera? 

Luckily, it's easy to check what sensor size you have. Just check the "Sensor Format" in this  NIKON reference table or CANON reference table

FULL-FRAME-SENSOR cameras are marked as "Full-frame" (Nikon) or "Full-frame CMOS" (Canon)
CROP-SENSOR cameras are marked as "APS-C" (Nikon) or "APS-C CMOS" (Canon)

 


LENSES FOR CROP SENSOR CAMERAS

So why should you care what sensor you have?  have FULL-FRAME SENSORS. Entry-level or enthusiast-level cameras usually have CROP SENSORS. But you still need to check!

Why do you need to know? Because it will make a huge difference to the results you get from a lens.

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