600 f4 with and without teleconverters

[Unframed Dave]

Without:

• ILCE-1
• FE 600mm F4 GM OSS
• 600.0 mm
• ƒ/4
• 1/5000 sec
• ISO 640

With 1.4X

• ILCE-1
• FE 600mm F4 GM OSS + 1.4X Teleconverter
• 840.0 mm
• ƒ/5.6
• 1/2500 sec
• ISO 640

With 2X

• ILCE-1
• FE 600mm F4 GM OSS + 2X Teleconverter
• 1,200.0 mm
• ƒ/8
• 1/1600 sec
• ISO 640

All handheld, ISO constant.

 

[iain clyne]

To me the 1.4 is fine but the 2x is a bit too soft for my liking.

 

[Unframed Dave]

To me the 1.4 is fine but the 2x is a bit too soft for my liking.

I agree and the close focus is horrendous.

 

[Richard A]

Where were you focusing for these shots? The depth of field is certainly very minimal but that is to be expected. It's hard to tell a big difference with these small compressed images. Do you really need 1200mm? If you do, there is some really great sharpening software out there these days which you may find useful. It's the same with noise. The denoising software is so good these days that using higher ISOs and then getting rid of any noise is pretty trivial.