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Thread started 29 Oct 2011 (Saturday) 22:49
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DIY follow focus.

 
Mr ­ Rogers
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Oct 29, 2011 22:49 |  #1

Has anyone done it? i know that its a good idea to get a follow focus but really? 200-1000 dollars? it's a very simple concept, why not do it diy?

has anyone made a DIY follow focus? if you have would you like to give some insight?

making a follow focus using a 1:2 right angle gearbox seems like the easiest way to go about it. Just designing a simple way to make the engagement surfaces work well.

Let me know what you think, if you have a follow focus, what kind do you have and is it worth the money you spent?


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snapshot2011
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Oct 30, 2011 06:31 |  #2

I agree......I want the rigs that currently exist but to be honest manufacturer wants way too much money for a bit of aluminium frame and plastic. They seem to think its like the medical industry...Just cause you need it to save lives they feel the need to charge the earth for it. I support coming up with a DIY version as I dont have $1000 plus to to put towards a plastic dial. Sorry for it sounding harsh but its the truth....would I pay for a $6000 DSLR?.Yes.......its engineered to the highest qaulity , taking years of R&D and deserves the price tag, but a bit or cheap tubing and plastic gears is seriously taking us all for a ride.

Count me in for a DIY version that can be sold for a few trips to the hardware store.....even better wait for asian countries to redesign it cheaper




  
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John ­ Sims
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Oct 30, 2011 12:32 |  #3

snapshot2011 wrote in post #13327630 (external link)
....even better wait for asian countries to redesign it cheaper

Well they have to a degree but the going rate is still around £100 which, as you say, is ridiculous for what it is.

I do have some sympathy for the company that came up with the first one. There was obviously a great deal of R&D went into it. However, now that it has been copied I believe the price of the facsimiles is being kept artificially high.


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mtimber
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Oct 30, 2011 12:47 |  #4

You need one of these:

http://www.youtube.com​/watch?v=wr7ODWNcMoY (external link)


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Mr ­ Rogers
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Oct 30, 2011 16:02 |  #5

I totally watched that jar opener video! it's really cool, i've been looking around like crazy trying to find one but unfortunately i can only find them on Ebay.

I don't know, i think it can be cheaper if i can find a reasonably priced gear box.
there is a place called rinomechanical i think that sells them for under fifty. but at that rate it may be a good idea to just buy a manufactured version..


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Trout ­ Bum
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Oct 30, 2011 18:28 as a reply to  @ Mr Rogers's post |  #6

I don't know, i think it can be cheaper if i can find a reasonably priced gear box.

The jar opener is too pricey for you?...


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Mr ­ Rogers
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Oct 30, 2011 19:00 |  #7

no not necessarily.. i would just rather put the money towards the follow focus vs. buy the jar opener then buy the follow focus stuff..


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drbutchermd
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Oct 31, 2011 22:37 |  #8

i'm broke, so i use this cheap ass zip tie system. it works!

http://youtu.be/G4tYuY​lbCac (external link)


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John ­ Sims
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Nov 01, 2011 03:23 as a reply to  @ drbutchermd's post |  #9

I bought a jar opener and waited two weeks while it swam across the Atlantic. Perhaps it shrank during the swim but it was too small for my 24/105. It would go around it but without enough free to lock properly. I now use it as ....... a jar opener.


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ChasWG
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Nov 01, 2011 03:33 |  #10

John Sims wrote in post #13336228 (external link)
I bought a jar opener and waited two weeks while it swam across the Atlantic. Perhaps it shrank during the swim but it was too small for my 24/105. It would go around it but without enough free to lock properly. I now use it as ....... a jar opener.

Ha! Very funny man! I have a simular issue when using the jar opener on my 24-70L. It fits, but needs a few more notches to catch properly. I shoved a waded up piece of paper under the slider part to help with friction. It works I guess, though I am working on my own copied design for a simple follow focus. It'll be based off of some designs I've seen on some YouTube vids.

And I'll be working on a skate board wheeled dolly for smaller cameras. I bought the wheels and bearings today, I'm only missing the axles and a few small bits. Time to go to the store again...

I've seen too many of those DIY videos to not give it a go. That's just the way I am...


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John ­ Sims
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Nov 01, 2011 03:44 |  #11

I hope you will be doing your own Build Vid. :-)


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ChasWG
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Nov 01, 2011 16:33 |  #12

I probably should, but that involves a lot of hand washing...

I hate picking up my shiny new camera and getting grunge on it from the build proccess. Maybe a few locked off shots. That way I only have to press a couple of buttons.

We'll see. I got the axles and wheel bolts today. Now I just need to plan this all out and start.

Maybe I should finish the camera rig first. It's just that this dolly seems so cool and useable right now!


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Mr ­ Rogers
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Nov 01, 2011 16:56 |  #13

Haha well i guess i don't already have a jar opener so it will be useful in any case.
I decided to get a jar opener. it will work until i can build something better at least.
ChasWG i'm jealous of your machining skills! i think that if I had the right tools Would be able to whip something up.

it's a good thing i'm using small old nikon primes instead of a larger lens. I think it'll fit...

I'll keep you updated on anything.

i'm beginning to thing that the gear boxes and all are a bit more than what is really needed.
i'm looking into gearless follow focuses now.

they seem easier to build.


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Trout ­ Bum
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Nov 02, 2011 19:47 as a reply to  @ Mr Rogers's post |  #14

As a way of easing my entry, I picked up a redrock micro lens gear, with a focus+zoom lever, to tide me over until I can get their follow focus unit. I find it quite handy, even for still shots.
I considered a gearless unit, but I like the idea of "industry-standard" (i.e., future-proof, more options) investments.


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easedrop
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Nov 03, 2011 10:33 |  #15

I saw a cool one made out of wood and rc hobby parts.




  
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DIY follow focus.
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