Glass for SI-2K

John DeLuca · July 28th, 2008, 01:15 PM

What kind of glass are you guys using with your SI-2K? We are currently looking at a used S16 Canon 7-63mm T2.6 and a set of super speeds to go with our Nikkor glass.

-John

Rohan Dadswell · July 28th, 2008, 04:26 PM

Hi John,

I got myself a set of Optar Illumina Super 16 lenses (8-50mm) and some Nikkors for telephoto work. And a Kinoptic 5.7mm for those super wide shots.
The Optars open up to T1.3 and match with the Nikkors quite well, I have no issue intercutting between the two.

How are you finding the Canon zoom ?

cheers
Rohan

John DeLuca · July 28th, 2008, 05:56 PM

Rohan-

It’s good to hear the Optars cut well with the Nikkors. I found the Canon through a big local production house (going out of business). Hopefully I can get it in the $11-14k range.

They also have a used Century 5.7mm T1.8 (C-mount) in the $700 dollar range. Im not sure how sharp it is, but a 5.7mm would be nice to have in the collection.

-John

Bhaskar Dhungana · July 28th, 2008, 10:40 PM

We are using a set of Optar Illumina Prime lens, also have Canon 8-64 zoom in one. The result from both lens are really good.

Bob Hart · July 29th, 2008, 01:46 AM

The Century 5.7mm f1.8 might be a Kinoptik lens rebarreled with more accessable iris controls. Century rebarreled the Kinoptik 9.8mm f1.8 for 35mm film cameras. You do get a wild field-of-view but by todays standards you may find the Kinoptiks a bit soft and flary.

Rohan Dadswell · July 29th, 2008, 02:47 AM

I actually have a Century 5.7mm T1.8 C-mount lens that I got off ebay before I got my Si-2K - it's not a rehoused Kinoptik.
I'll happily sell it to you for $700 ;-)
This lens isn't really up to 2K production (it could be just my lens but I also have a Century 3.5mm C-Mount fisheye that is also a bit soft)
The Kinoptik 5.7 is good at T4 or even 4/2.8 split but wide open it does go a tad soft but it's handy to have in the kit.

Jason Rodriguez · July 29th, 2008, 11:21 AM

BTW, just in case anyone is interested, watch out with using B4-mount lenses for covering the entire 2K image. They work well for 1080-resolution images, but the sensor we're using is spec'd at 5um, which creates an image width that perfectly fits the EBU standard for 2/3" 16:9 chips at 1080P resolutions. As a result, the 2K image is slightly larger, and this can lead to vignetting when using a B4-mount lens on a 2Kx1152 image.

Super-16mm lenses are strongly suggested for optimum 2K shooting.

Thanks,

Jason

Lior Molcho · July 31st, 2008, 05:39 AM

We did quite a research with the lenses, bought a used set of Zeiss super 16 at "Alan Gordons" for about 5K
9.5 mm
16 mm
25mm

they're fast lenses(very helpfull in maintaining low light levels)
later on we did a few days of comparing them to about 10 different lens sets in different rental houses. (optar, super 16, 35 primes)
i must admit i was a little scraed we'd find out we bought a "turkey", but they really stand up in chart tests againt 35 ultra primes!
so dont be afraid to go for older used lenses, (theyre at least 15 years old!)
they might be better then new cheaper ones

Lior
2Flags

July 28th, 2008, 01:15 PM	#1
John DeLuca Major Player Join Date: May 2003 Location: Akron, Ohio Posts: 490	Glass for SI-2K What kind of glass are you guys using with your SI-2K? We are currently looking at a used S16 Canon 7-63mm T2.6 and a set of super speeds to go with our Nikkor glass. -John

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July 28th, 2008, 04:26 PM	#2
Rohan Dadswell Regular Crew Join Date: Jun 2006 Location: Canberra Australia Posts: 73	Hi John, I got myself a set of Optar Illumina Super 16 lenses (8-50mm) and some Nikkors for telephoto work. And a Kinoptic 5.7mm for those super wide shots. The Optars open up to T1.3 and match with the Nikkors quite well, I have no issue intercutting between the two. How are you finding the Canon zoom ? cheers Rohan

July 28th, 2008, 05:56 PM	#3
John DeLuca Major Player Join Date: May 2003 Location: Akron, Ohio Posts: 490	Rohan- It’s good to hear the Optars cut well with the Nikkors. I found the Canon through a big local production house (going out of business). Hopefully I can get it in the $11-14k range. They also have a used Century 5.7mm T1.8 (C-mount) in the $700 dollar range. Im not sure how sharp it is, but a 5.7mm would be nice to have in the collection. -John

July 28th, 2008, 10:40 PM	#4
Bhaskar Dhungana Regular Crew Join Date: Mar 2006 Location: Kathmandu, Nepal Posts: 28	We are using a set of Optar Illumina Prime lens, also have Canon 8-64 zoom in one. The result from both lens are really good.

July 29th, 2008, 01:46 AM	#5
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 2,391	The Century 5.7mm f1.8 might be a Kinoptik lens rebarreled with more accessable iris controls. Century rebarreled the Kinoptik 9.8mm f1.8 for 35mm film cameras. You do get a wild field-of-view but by todays standards you may find the Kinoptiks a bit soft and flary.

July 29th, 2008, 02:47 AM	#6
Rohan Dadswell Regular Crew Join Date: Jun 2006 Location: Canberra Australia Posts: 73	I actually have a Century 5.7mm T1.8 C-mount lens that I got off ebay before I got my Si-2K - it's not a rehoused Kinoptik. I'll happily sell it to you for $700 ;-) This lens isn't really up to 2K production (it could be just my lens but I also have a Century 3.5mm C-Mount fisheye that is also a bit soft) The Kinoptik 5.7 is good at T4 or even 4/2.8 split but wide open it does go a tad soft but it's handy to have in the kit.

July 29th, 2008, 11:21 AM	#7
Jason Rodriguez Trustee Join Date: Mar 2003 Location: Virginia Beach, VA Posts: 1,075	BTW, just in case anyone is interested, watch out with using B4-mount lenses for covering the entire 2K image. They work well for 1080-resolution images, but the sensor we're using is spec'd at 5um, which creates an image width that perfectly fits the EBU standard for 2/3" 16:9 chips at 1080P resolutions. As a result, the 2K image is slightly larger, and this can lead to vignetting when using a B4-mount lens on a 2Kx1152 image. Super-16mm lenses are strongly suggested for optimum 2K shooting. Thanks, Jason

July 31st, 2008, 05:39 AM	#8
Lior Molcho Regular Crew Join Date: Feb 2006 Location: Israel Posts: 50	We did quite a research with the lenses, bought a used set of Zeiss super 16 at "Alan Gordons" for about 5K 9.5 mm 16 mm 25mm they're fast lenses(very helpfull in maintaining low light levels) later on we did a few days of comparing them to about 10 different lens sets in different rental houses. (optar, super 16, 35 primes) i must admit i was a little scraed we'd find out we bought a "turkey", but they really stand up in chart tests againt 35 ultra primes! so dont be afraid to go for older used lenses, (theyre at least 15 years old!) they might be better then new cheaper ones Lior 2Flags