Making A DIY Anamorphic Lens - Page 9 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #81 of 170 Old 01-17-11, 04:40 AM
Mark Techer
 
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Re: Making A DIY Anamorphic Lens

Quote:
Prof. wrote: View Post
Mark..You can provide a link to an outside supplier if you have one..Otherwise, if it's your own then Will can PM you..
Will has PM'd me, thanks.
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post #82 of 170 Old 03-11-11, 07:45 AM
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Re: Making A DIY Anamorphic Lens

So after my introduction I started reading through the
Anamorphic Projection section and who do I find but my friend
Mark Techer!

For those of you that want to jump down to the reason I am
posting in this thread and skip the flashback, go to the
bottom of the text in italics

For those who care about the backstory read on....


**flashback music begins....screens fades away in waves.....**

I met Mark in 2004 on another HT forum.
Not too long after, he started talking about Scope and lost me in a blur of fuzzy math....but caught my attention back when I realized what in the he was talking about.
Mark had already moved way down the path of his own solution when in 2006 I won an MK1 in a competition on that other forum. (No, not the one you are thinking of....this was a much smaller forum)

We have stayed in touch via email over the years.

In 2009, My wife, son and I went to Australia on vacation
(holiday for the Aussies here).
We spent about a month in Brisbane and I got to see several
really nice Home Theaters (Alot of which had added some
version of the MK lens to their HT)

Jump to 2010, we caught up again at CEDIA in Atlanta. My wife
and I drove down for the weekend just to catch up and I
started talking to Mark about my new house and my new
plans....

**flashback music fades......screen fades in waves back to the

high definition clarity of the present.....**


Now it's 2011 and my new HT is getting ready to become a
reality and I approached Mark about a possible DIY version of
the MK4. I wasn't sure how he would take my asking about
taking the lens he worked so hard to get just right and putting it in a case I would make....but he was very supportive.
He mentioned a special offer that he was able to get in January for glass only for the MK4.
Just about a week ago I received an awesome package in the
mail!!!

Woohooo My glass is here and I am ready to start designing my
case.

I have some great ideas and this looks like the perfect thread to log my progress.
Attached Thumbnails
Making A DIY Anamorphic Lens-mk4small.jpg  

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post #83 of 170 Old 03-11-11, 05:04 PM Thread Starter
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The Mad Professor
 
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Location: Murraylands South Aust
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Re: Making A DIY Anamorphic Lens

Welcome to the forum..

By all means post your details and progress with making up the MK.4..I for one will be most interested to see how it works out as I'm sure others will be as well..

If Mark is making a kit type lens available for the MK.4, then others may be interested in takiing this up as well..

Prof..
Home Theatre...the never ending story!


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post #84 of 170 Old 03-12-11, 05:23 PM
Mark Techer
 
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Re: Making A DIY Anamorphic Lens

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If Mark is making a kit type lens available for the MK.4, then others may be interested in takiing this up as well..
It had been on the "to do" list for some time. The challenge to making a DIY cylindrical is that the alignment of the two lenses is critical. Whilst a DIY prism lens allows for a fair amount of hit and miss, near enough is not good enough when you are using cylindrical lenes, and so I need to be mindful of this when designing the DIY case parts as well or no one will be able to assemble the lens.

The ONLY way to align the two lenses is to use single display lines mapped at 1:1 with the projector and you need to ensure the glass is 100% vertically aligned.
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post #85 of 170 Old 03-12-11, 06:23 PM Thread Starter
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Re: Making A DIY Anamorphic Lens

Could you not make up some sort of simple jig to align the lenses that could be included in the kit..
I wouldn't even worry about including a case..This is something most people could make themselves if you included a drawing of the case with dimensions..

Prof..
Home Theatre...the never ending story!


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post #86 of 170 Old 03-12-11, 10:34 PM
Mark Techer
 
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Re: Making A DIY Anamorphic Lens

There are three axis to consider and whilst X (depth) is variable, Y (width) and Z (height) MUST be aligned correctly or the or the lens won't focus properly and I haven't even mentioned rotation. You might remember I included a paper check test included with the Mk1. This is nothing like this, and the ONLY way to get this correct is to use single display pixel lines that run in both the H and V directions. So the DIY case I am creating will allow all the adjustments and (hopefully) allow you to get the best from the lens in your system.

Last edited by Mark Techer; 03-13-11 at 03:13 AM.
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post #87 of 170 Old 03-13-11, 06:33 PM Thread Starter
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Re: Making A DIY Anamorphic Lens

I see your point..This is not really a DIY case that just anyone can make up..
Looking forward to hearing further developments..

Prof..
Home Theatre...the never ending story!


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post #88 of 170 Old 03-14-11, 05:15 AM
Mark Techer
 
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Re: Making A DIY Anamorphic Lens

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Prof. wrote: View Post
I see your point..This is not really a DIY case that just anyone can make up..
Looking forward to hearing further developments..
Not exactly a true DIY job. What I will do this week is draw up all the parts for the laser cutter to run me a prototype. After I have assembled it and worked any bugs out (I have a spare set of optics here for testing purposes), I will be able to start a production run. The end user could assemble this case themselves. The point is that there is a great deal of accuracy required in the design, so why I feel it is best to have all the parts duplicated from a machine rather than having each DIY lens being essentially a one off.

The idea here is to offer an "affordable" solution to a high end problem. The challenge I face is that there seems to be a belief system in place that anything DIY is cheap. This glass used in this lens is not cheap and the cost cutting exercise here is the case where the machined alloy cases are expensive to produce forcing the price of the MK4 up to its listed price. Take that out of the equation and you have a very good product that more could afford.
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post #89 of 170 Old 03-14-11, 05:46 PM Thread Starter
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Re: Making A DIY Anamorphic Lens

So each case is machined individually!?..That would be expensive..
Obviously, Injection Moulding would be a lot cheaper, but off course that's only practical with a large quantity of units..I see your dilemma..

Prof..
Home Theatre...the never ending story!


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post #90 of 170 Old 03-14-11, 10:50 PM
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Re: Making A DIY Anamorphic Lens

Others here may (like myself) have access to equipment to cut and machine a case as well.. So I am listening for sure.
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