June 22, 2018, 01:30:07 PM

Author Topic: Leaked: Sigma 105mm f/1.4 HSM Art  (Read 12623 times)

vscd

  • EOS 6D Mark II
  • *****
  • Posts: 429
  • 5DC
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #15 on: February 25, 2018, 01:37:27 PM »
It's a perfect portraitlens, but no weathersealing - no buy. 

I had quite a few raining-events on weddings or in location and I don't need another failure like on a 50mm 1.4 Art... seal it.  8)    I went to Tamron in the meantime and got sealing+VC together with f1.8 which is working out very well.
« Last Edit: February 25, 2018, 02:01:45 PM by Canon Rumors »
5DC, 5DM3, 85 1.2L II, 80-200 2.8L, 100 2.8L IS, 14 2.8, 35 1.4, 75-300 IS, 135 1.8, 40STM, 24-85, Helios 44-2, Zeiss Lenses, and real cams like Zenza Bronica ETRSi or Fuji GX680

canon rumors FORUM

Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #15 on: February 25, 2018, 01:37:27 PM »

ahsanford

  • Canon EF 800mm f/5.6L IS
  • ***********
  • Posts: 6897
  • USM > STM
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #16 on: February 25, 2018, 02:16:28 PM »
Judging by the size of that front element relative of the mount, that is going to have one big filter diameter.  86mm? 95mm maybe?

Also, presuming this is real and happens soon, Sigma Art will have knocked out fast primes in all of the following FLs:

14
20
24
35
50
85
105
135

That represents almost the entire non-white L prime lineup -- including fringe-ier items like 20mm and 105mm -- knocked out in less than 6 years.

- A

ad

  • PowerShot G7 X Mark II
  • **
  • Posts: 8
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #17 on: February 25, 2018, 02:23:46 PM »
Judging by the size of that front element relative of the mount, that is going to have one big filter diameter.  86mm? 95mm maybe?
If you look closely at the lens name in the image in the original post (http://www.canonrumors.com/wp-content/uploads/2018/02/sigma105artnok.jpg), it says 105mm diameter.

jolyonralph

  • EOS 5D Mark IV
  • ******
  • Posts: 703
    • Every Other Shot
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #18 on: February 25, 2018, 02:29:00 PM »
Would be great if someone came out with an equivalent of this lens with autofocus.


And yes, I know what the specs say, but this is a Sigma. If my sigma art 35 lens gets focus right 50% of the time then it's a really good day.  Doesn't matter how great the optics are if the autofocus is junk.
Jolyon Ralph

Cameras: 5DSR, A7RII, 5D III, EOS M6/M5/M3, Mavic Pro, DXO One.  Oh, and more lenses than I care to count.

slclick

  • Canon EF 300mm f/2.8L IS II
  • ********
  • Posts: 2530
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #19 on: February 25, 2018, 02:36:12 PM »
Would be great if someone came out with an equivalent of this lens with autofocus.


And yes, I know what the specs say, but this is a Sigma. If my sigma art 35 lens gets focus right 50% of the time then it's a really good day.  Doesn't matter how great the optics are if the autofocus is junk.

The 35 and a few others used a much older AF motor and algorithm and the later models are quite impressive. Some rival 1st party such as the 85 and 135 not to mention the 24-35 as well for an older model with good AF (easier on wide , I know) It really is night and day.
I wear my 'I don't shoot video ' badge proudly

jolyonralph

  • EOS 5D Mark IV
  • ******
  • Posts: 703
    • Every Other Shot
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #20 on: February 25, 2018, 02:44:17 PM »
I'd like to hope it's better than ti was before, because the 35 art is unuseable and Sigma refused to do anything about it. I'm now stuck with it because I am unwilling to pass on this piece of junk to anyone else.
Jolyon Ralph

Cameras: 5DSR, A7RII, 5D III, EOS M6/M5/M3, Mavic Pro, DXO One.  Oh, and more lenses than I care to count.

magarity

  • EOS Rebel SL2
  • ***
  • Posts: 96
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #21 on: February 25, 2018, 03:02:04 PM »
Starting at 1.4 means with a pair of doublers it can be a 420mm 5.6. hah!

canon rumors FORUM

Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #21 on: February 25, 2018, 03:02:04 PM »

danski0224

  • EOS 5DS R
  • ******
  • Posts: 1070
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #22 on: February 25, 2018, 03:03:02 PM »

That represents almost the entire non-white L prime lineup -- including fringe-ier items like 20mm and 105mm -- knocked out in less than 6 years.

I'm sure that Sigma has used their existing lenses as a base for improvement, and I wouldn't be surprised if there are some design similarities between the 135 and 105, for example.

Some of these have probably been in the works since the pre-Global Vision lens series were released.

That 105mm might be similar to the Canon 200 f/2 in size and weight.

Isaacheus

  • EOS M5
  • ****
  • Posts: 151
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #23 on: February 25, 2018, 03:08:49 PM »
I'd like to hope it's better than ti was before, because the 35 art is unuseable and Sigma refused to do anything about it. I'm now stuck with it because I am unwilling to pass on this piece of junk to anyone else.

I'll pay for shipping to me if you're giving it away 😜

Out of curiosity, what body are you using it on? I've always wondered if that made a difference, or if it was the lens itself

jolyonralph

  • EOS 5D Mark IV
  • ******
  • Posts: 703
    • Every Other Shot
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #24 on: February 25, 2018, 03:34:50 PM »
Out of curiosity, what body are you using it on? I've always wondered if that made a difference, or if it was the lens itself

On the 5DSR and the 5D Mark III it was hopeless.  Performs much better (as you'd expect) on a mirrorless camera (eg Sony A7RII with metabones, or on the M5) but still not stellar.

I'm hoping a future Canon FF mirrorless will make the lens worth keeping.
Jolyon Ralph

Cameras: 5DSR, A7RII, 5D III, EOS M6/M5/M3, Mavic Pro, DXO One.  Oh, and more lenses than I care to count.

Don Haines

  • Canon EF 800mm f/5.6L IS
  • ***********
  • Posts: 6861
  • posting cat pictures on the internet since 1986
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #25 on: February 25, 2018, 03:57:21 PM »
I'd like to hope it's better than ti was before, because the 35 art is unuseable and Sigma refused to do anything about it. I'm now stuck with it because I am unwilling to pass on this piece of junk to anyone else.

Interesting.....

Are you on the latest firmware for the lens?
« Last Edit: February 25, 2018, 04:04:56 PM by Don Haines »
The best camera is the one in your hands

The Fat Fish

  • PowerShot G1 X II
  • ***
  • Posts: 29
  • VFX Artist
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #26 on: February 25, 2018, 04:00:07 PM »
Another case for IBIS.

zim

  • EOS-1D X Mark II
  • *******
  • Posts: 1714
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #27 on: February 25, 2018, 04:00:44 PM »
CR?
Or click bait?

canon rumors FORUM

Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #27 on: February 25, 2018, 04:00:44 PM »

Joules

  • EOS Rebel 300D
  • ***
  • Posts: 58
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #28 on: February 25, 2018, 04:13:48 PM »
And yes, I know what the specs say, but this is a Sigma. If my sigma art 35 lens gets focus right 50% of the time then it's a really good day.  Doesn't matter how great the optics are if the autofocus is junk.
I'm assuming you have used the Sigma dock to fine tune autofoucs?

My 35mm Art showed inconsistent focus before I calibrated it. Sometimes it would back focus, sometimes it would hit perfectly, sometimes it would front focus. After spending a good amount of time with the dock, this inconsitency is gone and it hits perfectly in the close range on an 80D. My correction value for infinity isn't quite right, so for distances around 2m I still get front focus, but it is consistent.

But I'm sure there are actually bad copies out there and maybe you have one.

mb66energy

  • EOS 5DS R
  • ******
  • Posts: 904
    • My Homepage
Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #29 on: February 25, 2018, 04:22:28 PM »
[...]


My Opinion: I would prefer an updated EF 2.0 100 with IS, better LOCA correction, 1:4 close focus and only moderately increased size / weight. A 1.4 105 with tripod foot nearly not as flexible to use - I bet it has a mass of 1250 g.
You don't get to throw in IS, let alone better-corrected glass, for only a 'moderate' increase in weight over the existing 100/2. That lens is extremely small and light to begin with; anything more up-to-date will always be much bigger than it. If you want closer focus too then you're looking at basically the existing 100mm L but with a wider aperture; exactly how light do you think that could be?

Introducing aspherical lenses, special dispersion glasses and maybe some exotic materials like the blue refractive material are methods to (1) reduce the number of lenses and/or (2) enhance correction a little bit and for LOCA only and/or (3) make room (see (1)) for more movement of lens groups to reduce the close focus distance and (4) make room for an IS group (see (1) too).

The existing EF 100 2.0 is a very very good lens except LOCA at f/2.0. If it gets 10mm in length, 10mm in diameter and 200g more of weight it would be a very flexible toy for those who like a longer focal length as general purpose lens.
Most used tools: EOS 200D + EF-S 60mm + EF 100mm Macro + EF f/2.0 100  + 4.0 / 70-200 IS

canon rumors FORUM

Re: Leaked: Sigma 105mm f/1.4 HSM Art
« Reply #29 on: February 25, 2018, 04:22:28 PM »