Architeuthis

Here is a Webside where you can compare sharpness of different lenses: ...

Here is a serious review: https://opticallimits.com/sony/samyang-af-24-70mm-f-2-8-fe-review/ => Bottomline is that the lens is not worth the money. Sigma 24-70 art or Tamron 28-75 are recommended ...

Did you ever have the desire/requirement to use the 8-15mm fisheye (with and w/o 1.4x TC)? Or was the WWL-1 the best choice for most occasions? Just curious, I will take both Canon 8-15mm (and 1.4x ...

Beautiful shark photos. I was already wondering how your trip was... Wolfgang

It must be a new design, not just changing the mount, as the price for the Sony mirrorless version from Sigma is 1430$, roughly almost half of the new OM lens...

I use the Metabones 0.71x Canon EF to MFT speedbooster. S-AF works resonable in my hands...

I was using the Sigma 150-600mm Sports with Canon EF mount with Metabones adapter on EM1II for a while (now switched to Sony FF). Due to the big image circle and the general optical performance,...

Placed 2^nd in the challenge. Curious dolphins (Tursiops species) check out divers in the early morning. Mangrove Bay, Red Sea, Egypt.

Placed 19^th in the challenge. Photo taken at sunset at Ras Muhammed, Red Sea, Egypt

The performance of AF for macro of the A7R5/Sony 90mm combination, even with SMC-1 attached, is very good to excellent. The speed of the AF motor of the lens is still not fast, but AF and even ...

Just an addition: In case you want to acquire a wet or dry optics for WA (WWL, WACP, FCP), you may also consider to take the Sony 28-60mm lens as your standard zoom lens (this lens is required to ...

Hi TMWR, We are in the same boat - I use A7R5 for UW since approx. 1 year. While passionate with UW photography, my over the water (OW) photography is mostly occasional family and travel... The ...

Placed 11^th in the challenge. Mangrove Bay, Red Sea, Egypt

Placed 4^th in the challenge. Green turtle with pilot fish grazing in seagrass meadows

I doubt that any of the native FE circular fisheye lenses has high IQ... I own the Canon 8-15mm f/4 EF fisheye lens, use it with metabones V adapter on A7R5 and can confirm that IQ is very high... ...

The comparison of IQ of different cameras that have different base ISO values at these (different) ISO values is apples to oranges...

It must be said that a base ISO of 250 for a sport camera is...

... now when you say it, I had a look - Stingray City is on Great Cayman not on Little Cayman: https://en.wikipedia.org/wiki/Stingray_City,_Grand_Cayman => Long ago and memories fade (I remembered ...

Hi Craig, I cannot contribute much. I was at Great Cayman in the 90ies. We visited Little Cayman once (I think at this time there was no Hotel on Little Cayman) to dive in "Stingray City". This is ...

Maybe... One must say, however, that most divers with FO never will know that hey have one. It could be that at higher ages some of these divers start to get problems and Craig is one of them... I ...

Dear Craig, It is a pity to hear that you got DCS again. If this was indeed DCS there must be a serious individual problem, like e.g. a foramen ovale (I once had a young student who got DCS after ...