What am I doing wrong?!?!? - Page 3 at DVinfo.net

Go Back   DV Info Net > Special Interest Areas > Alternative Imaging Methods

Alternative Imaging Methods
DV Info Net is the birthplace of all 35mm adapters.


Reply
 
Thread Tools Search this Thread
Old February 1st, 2005, 09:52 PM   #31
Major Player
 
Join Date: Jul 2004
Posts: 587
The telescoping is the zoom. No need to worry about that. Just work with the focus ring.

To set your lens to infinity, yes, move the ring to the infinity symbol.
Aaron Shaw is offline   Reply With Quote
Old February 2nd, 2005, 02:31 AM   #32
Major Player
 
Join Date: Nov 2004
Location: LI, NY
Posts: 274
http://s17.yousendit.com/d.aspx?id=0...F2FY53PH7VDO78

Camera w/ 10x macro filter - CD spinning - 35mm lens

Unusable but took 2min to put together. Perfecting it takes longer.
Kyle Edwards is offline   Reply With Quote
Old February 2nd, 2005, 06:15 AM   #33
Inner Circle
 
Join Date: Dec 2003
Location: PERTH. W.A. AUSTRALIA.
Posts: 4,356
Mandy.

Q and A as before.

It is a SIGMA Zoom 1:35~4.5 f=35~105mm. ---- I've heard Sigma zooms can be good but cannot comment from personal experience.


Maybe this might be better for use. ---- It might be sharper, maybe not. The aperture performance is no better on paper than your Kiron so it may still hotspot. My experience between the 28 - 85mm zoom (el cheapo from hockshop) and a Tamron 28mm - 200mm zoom was the 28mm - 200mm was worse for hotspot, though comparable for available aperture. This is not to detract from either lens in terms of performance in their original application. The original design intent for the lenses never envisaged their abuse in the application they are now put in Agus/Aldu projects. If you can afford it, go for a simple prime lens of 50mm with f1.8 aperture. Now is also the time to decide on a standard mounting system. So far it looks like you may have Yashica and Nikon?? They appear similar but won't interchange.

Right now I am still experimenting. I am going to set up a box, just to see what happens - a prototype for now. If it works, I will build another better model, but it helps to have people like yourself on board to give assistance! ----
Hopefully it is not a case of the blind leading the blind.

So what do you think of this lens? Is it going to be a better fit than the KIRON MACRO? ---- As I see it, probably not. They may perform similarly.
Bob Hart is offline   Reply With Quote
Old February 2nd, 2005, 07:56 AM   #34
Major Player
 
Join Date: Dec 2004
Posts: 749
Thanks Kyle, yeah, I can get something simliar in a setup with my camera on a tripod, the 35mm on a tripod and the spinner CD being held in place, its brace wedged in a table - but you are right, unusable. I am trying to put together a usuable working model to see if I can do it.
If I fail miserably, that's ok, I can always get the Micro35 guide.

Bob, thanks - I am going to look for 50mm with f1.8 today and the next couple of days and see what I can come up with.
You are right as well about the interchangeability of the KIRON and the SIGMA, they seem to have the same ends, but the KIRON has a large circumference, so it doesn't fit. I thought all SLR were made to be interchangeable?

Going to hit a camera store and see if I can't get a spare cap for the ends for the SLR and use that to mount the lens on the front.

Are the 50mm with f1.8 rarer or hard to find? Am I going to get blank stares at the hock shop?
Leo Mandy is offline   Reply With Quote
Old February 2nd, 2005, 11:38 AM   #35
Major Player
 
Join Date: Sep 2004
Location: arlington, texas
Posts: 420
mandy i think the problem is, you are making an adapter just like the rest of us. quit while you're ahead... hahah jk. good luck with the adapter.
Cody Dulock is offline   Reply With Quote
Old February 2nd, 2005, 01:13 PM   #36
Major Player
 
Join Date: Jul 2004
Posts: 587
50mm is the "normal" focal length. There should be no problem finding or acquiring one.

SLRs are indeed meant to be interchangable but you cannot interchange lenses between brands and sometime even different lens sets from a single company (think Canon....).
Aaron Shaw is offline   Reply With Quote
Old February 2nd, 2005, 03:18 PM   #37
Major Player
 
Join Date: Dec 2004
Posts: 749
So I am not the only one going thru the growing pains of this thing?! I was starting to think I was! Every other day, someone was posting their new design, so I thought I was just stupid (maybe cuz I am!).

Right now, I am just trying to find the right material for this. Plywood today so I can start make box, but the 50mm with f1.8 aperture are expensive! I went to a hock shop and it was $50.00! More than I have right now for this project, so I might have to make do with the lenses I have right now. The hardest part is getting this thing right - yes, I can see the nice upside down picture, but focusing on infinity is proving to be a problem!

Also, does anyone know when breaking apart a CD player, is it just the red and black wire that need to be kept? What about the copper ribbon that attaches to the base? Thanks
Leo Mandy is offline   Reply With Quote
Old February 2nd, 2005, 03:38 PM   #38
Major Player
 
Join Date: Jul 2004
Posts: 587
Mandy, you should only set the focus to infinity while trying to figure out the proper distance from the ground glass to the lens. After that use the focus ring. Trying to focus on something nearby when the lens is set to infinity is impossible. Inifinity is used for far, far, away objects.
Aaron Shaw is offline   Reply With Quote
Old February 2nd, 2005, 03:41 PM   #39
Major Player
 
Join Date: Dec 2004
Posts: 749
Yep, thanks I am getting to that. Right now I need to figure out this CD player thing! the toy motors I have right now is too big and will not work when I am adjusting the focal range. I need to know if I can cut the Copper ribbon that attaches the motor to the casing and then which wire I need to keep!
Leo Mandy is offline   Reply With Quote
Old February 2nd, 2005, 04:54 PM   #40
Major Player
 
Join Date: Sep 2004
Location: arlington, texas
Posts: 420
there should be a cd motor with two wires coming out of it... they could be red and black, or green and white, or whatever... just unplug that from the circuit board. you can also remove the cd motor from the plastic thing the laser moves on. or you can remove all the laser crap and keep it mounted to it. i kept my cd motor mounted to the plastic thing.

look on ebay for lenses. their are usually some really good deals on there. i think i saw a canon f 1.4 lens on there a while back for the AE-1 type mount for really cheap (old school lens).

i used an old broken miranda cameras front mount off the camera and screwed it to my project box. i just use the old f 1.4 50mm lenses for it...

when i set my ground glass in the right spot, i went outside and set my focus at infinity and pointed it at something really far away, then adjusted the GG further or closer to the 35mm lens. you dont need your video camera for this. you can eyeball it by looking at the GG. but your box needs to be pretty enclosed so not alot of light gets through.
Cody Dulock is offline   Reply With Quote
Old February 2nd, 2005, 09:35 PM   #41
Major Player
 
Join Date: Dec 2004
Posts: 749
Thanks again. Yeah, I am in the process of getting some particle board and some different screws for another box, so I can fine tune and adjust as necessary. Getting this thing in a dark location isn't the easy thing, but I am going to have to try something.
Leo Mandy is offline   Reply With Quote
Old February 3rd, 2005, 02:26 PM   #42
Major Player
 
Join Date: Sep 2004
Location: arlington, texas
Posts: 420
i made my first prototype out of a cardboard box to see if it worked. cut a hole, taped the lens the box, taped the cd motor in, then cut a hole in the other side of the box... pretty simple and it worked and made me want to make this thing
Cody Dulock is offline   Reply With Quote
Old February 3rd, 2005, 02:36 PM   #43
Major Player
 
Join Date: Jul 2004
Posts: 587
My first test was the same sort of thing. I used wax paper instead to test with and then moved on to work on a useable version.
Aaron Shaw is offline   Reply With Quote
Old February 3rd, 2005, 03:08 PM   #44
Major Player
 
Join Date: Dec 2004
Posts: 749
Have you used your version for any filming yet?
Leo Mandy is offline   Reply With Quote
Old February 3rd, 2005, 03:09 PM   #45
Major Player
 
Join Date: Jul 2004
Posts: 587
As in pro work? No, not yet.
Aaron Shaw is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Special Interest Areas > Alternative Imaging Methods

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 09:43 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network