Birger Mounts....update?

[Michael Hastings]

I'm really just trying to point out some of the issues.

I'm really just trying to point out some of the issues.

Sounds like they may need to hire you to be their salesperson and marketing guru 'cause they clearly don't have one... and you're doing as good a job as anyone could.

I'm really just trying to point out some of the issues. As a small manufacturer myself I know where a lot of the problem areas lie and I'm just saying that, given that RED has been making changes on the mount, it may be causing Birger to hold off finalizing as well. Given the uncertainty, as well as NDAs that they surely have with RED, it may just be that it is more appropriate to say nothing until it is clear - however frustrating that may be for all of us.

 

[angendevenir]

We can change the aperture with the nikon mount of the APS lenses and other auto-aperture lenses ???

 

[Lauri Kettunen]

It's also interesting because the EOS lenses, being designed for still cameras, were never intended for rack focus cine applications, so the Birger folks are entering somewhat unexplored territory there.

Thinking more precisely, not sure this fully holds water. It is possible to switch EOS-bodies and the EF-lenses to follow a moving object to maximize the precision of focus. And, after years of using EF-lenses with XL-series videocameras, think focusing with RED will not be a problem.

 

[KnightRule]

Canon Lens Resolution Charts.

Canon Lens Resolution Charts.

Try to buy some of the better lenses (L series are the best) to get the most out of your RED.

According to the test from The Digital Picture.com, the cheaper the lenses seem to out-perform the L-series lens significantly at every aperture.

Here's a link to a comparison of a Canon 50mm f1.8 II ($69.95) vs. Canon 50mm f1.2 L ($1329.00). B&H prices.

 

[Mark Crabtree]

The right tools

The right tools

A lens with at huge maximum stop of 1.2 and great all around performance is a big challenge for lens designers. The idea of a making a 1.2 lens is for optimum use in low light situations. If you intend to use it for brightly lit scenes you will probably not get the same performance as from a slower lens. Slower lenses will have less flare and perhaps even more resolution. But when you want to shoot in low light the 1.2 is just the ticket.

 

[Mark Pugh]

Weren't the red team supposed to be working in association with Birger as Birger developed these mounts?

There's been no posts in this thread from anyone at Red regarding what's happened to Erik. Maybe no-one knows.

Maybe someone's taken over Erik to sell more of thier own lenses.
Maybe something more benevolent/ constructive is taken place.

If someone knows something, it'd be a bit cruel not to share a hint or two.

 

[Roberto B]

erik loves holidays.. he's used to post here when he's not in holidays.

 

[Mark Pugh]

He picked a strange time to take a holiday.
... and no "gone fishing" note on the door.

 

[angendevenir]

Go on http://www.photozone.de/8Reviews/index.html for seen performance of Canon, nikon, tokina, tamron and ZEISS

I dislike the L serie except the 24mm and the 85mm. 24mm are bad on corner, but sometime we need an wide open aperture with deepfield.

 

[Steve Murray]

Still lenses: I think if you get 3 new lenses of any brand (same mm) and test them you will most likely get 3 different results. Especially wide angle and wide zooms.

I think that one should ignore still lens tests as they are only accurate to that specific lens which was tested.

Perhaps the Cine lenses will be more consistent, they should be, but I think you will find that every lens is unique and you should test your lenses and not go by online "tests".

You may get totally different results, I have.

 

[PaulClements]

Perhaps the Cine lenses will be more consistent, they should be, but I think you will find that every lens is unique and you should test your lenses and not go by online "tests".

This is what makes Cooke lenses so exceptional and highly regarded. Each lens is exact to another in colour and accuracy. Even Zeiss lenses are not made to such exacting degrees - They are however far more precise lens to lens than still lenses.

When doing lens conversions from still lenses the rehousing usually involves selecting the best optics from many of the same type of lens so that the final rehoused still lens is made up of the best parts with least distortion, CA etc... since each lens differs from one to another - sometimes slightly sometimes severely. This is one of the reason that rehoused lenses can often cost a lot.

Paul

 

[chuck colburn]

Hi Paul,

Where did you read that companies who rebarrel or rehouse lenses are slecting diiferent groups or singular elements to build new ones with?
I would like to read that article.

thanks,