Sigma Announces Sony and L Mount 100-400 f5-6.3

From Sigma:

Sigma Announcement


https://fstoppers.com/gear/sigma-announces-100-400mm-f5-63-compact-telephoto-zoom-sony-and-l-mount-cameras-493699

Joe

About half price of the Sony and 1/3 stop slower. It's gotta do some very heavy lifting to get even in the same universe as the Sony though which blows away all other lenses in the category from any manufacturer by a huge amount.

There seems to be a "creep" in terms of maximum f-stop of lenses lately. They seem to be getting a bit slower all around.

Scott Fairbairn wrote:There seems to be a "creep" in terms of maximum f-stop of lenses lately. They seem to be getting a bit slower all around.

...yeah, and 7.1 is next.  Canon has already announced a 100-500 f/7.1 RF lens.

E.J. Peiker wrote:

Scott Fairbairn wrote:There seems to be a "creep" in terms of maximum f-stop of lenses lately. They seem to be getting a bit slower all around.

...yeah, and 7.1 is next.  Canon has already announced a 100-500 f/7.1 RF lens.

And possibly a 600 f11 and 800 f11.

Joe

SantaFeJoe wrote:

E.J. Peiker wrote:

Scott Fairbairn wrote:There seems to be a "creep" in terms of maximum f-stop of lenses lately. They seem to be getting a bit slower all around.

...yeah, and 7.1 is next.  Canon has already announced a 100-500 f/7.1 RF lens.

And possibly a 600 f11 and 800 f11.

Joe

Those two lenses seem crazy to me. 
But who knows. 

I have to believe those f/11 lens patents are just to patent some technology. Realize that only about 1 in 10 photo related patents that Canon files are ever productized. Many are just to patent a certain technology.

E.J. Peiker wrote:I have to believe those f/11 lens patents are just to patent some technology.  Realize that only about 1 in 10 photo related patents that Canon files are ever productized.  Many are just to patent a certain technology.

Could it be just for using diffractive optics in lenses of those focal lengths, or would it be related to motors or some such thing? I would think a full line of super telephotos in DO versions would be fantastic. I'm hoping Sony does the DO/PF type lenses at some point.

Scott Fairbairn wrote:

E.J. Peiker wrote:I have to believe those f/11 lens patents are just to patent some technology.  Realize that only about 1 in 10 photo related patents that Canon files are ever productized.  Many are just to patent a certain technology.

Could it be just for using diffractive optics in lenses of those focal lengths, or would it be related to motors or some such thing? I would think a full line of super telephotos in DO versions would be fantastic. I'm hoping Sony does the DO/PF type lenses at some point.

Yeah possible - it's interesting that the Canon DO and Nikon PF lenses have no duplicates in one another's line so it may be a patent thing.

Scott Fairbairn wrote:

E.J. Peiker wrote:I have to believe those f/11 lens patents are just to patent some technology.  Realize that only about 1 in 10 photo related patents that Canon files are ever productized.  Many are just to patent a certain technology.

Could it be just for using diffractive optics in lenses of those focal lengths, or would it be related to motors or some such thing? I would think a full line of super telephotos in DO versions would be fantastic. I'm hoping Sony does the DO/PF type lenses at some point.

To be honest, these are a rumor, but lately the leaks have been pretty accurate. F11 is pretty useless at those focal lengths for wildlife IMO, due to the DOF being way too much to isolate most subjects. Maybe with a fast shutter speed they could be a BIF lens because of the BG being far away and focus would not have to be quite as accurate to include the bird in the extra DOF.

https://fstoppers.com/gear/canon-eos-r5-r6-and-6-rf-lenses-be-announced-july-9th-494463

Joe

SantaFeJoe wrote:

Scott Fairbairn wrote:

E.J. Peiker wrote:I have to believe those f/11 lens patents are just to patent some technology.  Realize that only about 1 in 10 photo related patents that Canon files are ever productized.  Many are just to patent a certain technology.

Could it be just for using diffractive optics in lenses of those focal lengths, or would it be related to motors or some such thing? I would think a full line of super telephotos in DO versions would be fantastic. I'm hoping Sony does the DO/PF type lenses at some point.

To be honest, these are a rumor, but lately the leaks have been pretty accurate. F11 is pretty useless at those focal lengths for wildlife IMO, due to the DOF being way too much to isolate most subjects. Maybe with a fast shutter speed they could be a BIF lens because of the BG being far away and focus would not have to be quite as accurate to include the bird in the extra DOF.

https://fstoppers.com/gear/canon-eos-r5-r6-and-6-rf-lenses-be-announced-july-9th-494463

Joe

I noticed in that image, center back, what could be the 600/800 f11 so maybe it's real. Personally, I could see an 800f8 or a 600f5.6 being good sellers, but f11? Maybe they are budget-friendly?

Wouldn't a 600mm F11 or a 800mmF11 be a mirror lens. I have a Nikkor 1000mmF11 lens and its manual focus.

Larry Shuman wrote:Wouldn't a 600mm F11 or a 800mmF11 be a mirror lens. I have a Nikkor 1000mmF11 lens and its manual focus.

If the pictures are a true representation, they are definitely not mirror lenses, judging by the length. Mirror lenses are pretty much historic anymore.

Joe