Sigma APO TeleConverter 1.4x EX DG
Sigma APO TeleConverter 1.4x EX DG

I acquired the Sigma TeleConverter in September 2019 and Honestly, I am way behind in discovering these.

When I bought my Tamron 150-600mm Telephoto zoom lens, I noticed there was also a bundle option that came with a 1.4x converter. But I was after a lens and seeing mixed reviews of them I decided to stick to getting just the lens.

However, since finding the online used camera supplier which is owned by Jessops, I have been keen to update and upgrade my equipment.

I upgraded my camera from my Nikon D5300 to the D7200, and very happy that I did.

Then I got another lens, a Tamron PZD 18-300 which has a Piazo drive, but I found it slow to focus and crept a lot. It got sent back as it was possibly faulty, which meant I was still on the hunt for a mid-range lens.

Now and again they run offers. I saw an advert where a 20% off promotion was running, so I went back to their site to continue my search for a lens.

I found a Nikon 55-200mm lens with VR II, not quite the range but of my 18-105mm VR lens or the one I had to send back. But this one had the newer VR II, so I added it to my basket and entered the discount code.

Then I remembered I had been looking for a converter but last time they had sold out of Nikon fit versions. I searched and up came the Sigma for Nikon. It was a good price so I also added that and checked out.

I now have them arrived on Monday having placed the order at the weekend. Both came quality-packed and in their original boxes.

nikon convertor tamron
In between the camera and lens. (sample photo below)

I thought it might work with the shorter lens but it was not compatible, but fitted fine with the mega lens.

sample photo Sigma APO TeleConverter EX DG
With and without the converter. (click for full 24MPimage)
sample photo2 Sigma APO TeleConverter EX DG
With and without the converter. (click for full 24MPimage)

600mm lens on DX = x1.5 = 900mm, add the 1.4 converter 900 x 1.4 = 1260 mm (confirmed by Sigma UK)

Using the APO Tele Converter EX decreases the effective aperture by one F-stop (with 1.4x Tele Converter) or by two F-stops (with 2x Tele Converter). Regardless of exposure mode, correct exposure can be obtained.

tamron 600mm g2
Check out my Tamron SP review