Question about Mamiya Photography

1 Answer

Taking apart and putting back the freznel screen of a Mamyia 220

When taking apart the Freznel screen of my C220 to clean it three small silver metal washers droppedout, but when replacing everything I was unsure of the correct positioning of three small metal washers, and two black cardboard spacers, one spacer is slightly thicker than the other.The spacers fit under the Mamyia logo and level out the focusing screen. Is an exploded diagram available to clarify exactly where they fit?.

Many thanks

Kridon Panteli

Posted by on

  • imaging817 May 14, 2009

    Many Thanks for your reply

    K.Panteli


×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 216 Answers

Those are spacers for equal plane for all corners.

Without the service manual, then you are up the river without ...

Just try to put spacer(s) on one side more than the other and close it up. Now look thru the viewfinder with lenses attached and check for sharpness.

If you're doing lots of cloe-up or macro, then those spacers are needed. If you can't correct problem, just shoot at F5.6 or higher.

You will have to remove or add spacer(s) by using T & E methods.

eltroman
atdlee@netzero.com

Posted on Jan 08, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Hi i have a KP - 41DS1U. We have accidentally damaged the screen, we'd like to replace these layers of screen. I assume we can go straight to a plastic producer to get these? Or do you have any othet...


The panels are special unfortunately and contain freznel style light paths.
Sony.com will give you details of a dealer that will be able to supply a new screen.
Hope that helps.

Dec 17, 2010 | Televison & Video

1 Answer

I have a panasonic pt47wx49e rear projection television. On the bottom half of the screen there is a red shadowing effect that makes me think the convergence is off. Also there is a scratch on the outer...


I had the same problem with my tv. It is a convergence problem but if it has convergence settings in the menu and they don't fix it, you need to clean the lenses with alcohol and q-tips. I did it with the tv on so i could make sure it was clean by the absence of streaks on the lenses. The outer screen (if it is smooth) should be a protective screen (just plexiglass). You can get a replacement at a glass store be sure to keep the old one so they can cut a piece to size. It the screen you are talking about has little lines in it your freznel lens is scratch and it will be difficult to find a replacement. Good luck!

Mar 14, 2010 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Screen has been pushed in 42wt29b


If the protection screen is broken, Just take it out and replace it with a sheet of plexiglass. If the freznel lens is damaged I believe you will have a hard time finding a replacement. Good luck.

Mar 09, 2010 | Toshiba Televison & Video

1 Answer

SPOTS ON THE INSIDE OF THE EXTEROR SCREEN HOW DO I CLEAN IT? CAN I TAKE OFF THE SCREEN COVER AND CLEAN THE INSIDE? WHAT DO I USE TO CLEAN IT WITH?


You will have to remove the screws around the top and sides of the screen in the back. The screws should be 7/64" allen key. I took the protection screen off of mine because I don't have kids or animals. I would clean the plexiglass layer after removing it from the TV. If you get any bit of the cleaning solution on the freznel lens it will leave a very noticable spots that you have to work hard to get off. Good Luck!

Mar 09, 2010 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Top left of screen looks warped as well as bottom. Almost as if something hit the screen, but the kids say it wasnt them. Tried the convergence feature on the setup, but that does not help in any way. Also...


has the screen been pushed in?
does it look cracked?

the reason the pic looks warped may simply be the magnifier screen (lenticular) behind the outer screen (freznel) has been pushed in giving the distorted look

if so and you are capable it is not a big job

however if either screen is cracked then it is an expensive job

Oct 13, 2009 | Televison & Video

1 Answer

Can't find screen part for sony rear projection tv Model# KP61565


1 is called a lenticular and the other is called a freznel usually expensive.

Dec 26, 2008 | Sony KP-51HW40 51" Rear Projection...

2 Answers

Please Help with color & screen Cleaning


You are going to have to adjust the three screens in the front of the set behind the speaker cover. You will need to adjust the Red, Green, and the Blue all to look like a B & W picture so turn down the color or put in a B & W movie from a DVD or VCR. Then adjust each screen till you get the best blend and a good grey scale. Grey scale is the best B & W you can get on the TV set. The screen has two surfaces on it. The outside part goes up and down and is called the lenticular screen, and the inside part has round circular pattern too it and is called the freznel lens. The circular screen and the outside screen can be cleaned with a car polish cloth called a Shammey. Use deluted windex and only wipe the rag in the direction of the screen, eather up or down or circular. Good Luck

Mar 24, 2007 | RCA P52955 52" Rear Projection Television

1 Answer

Image problems


this might sound odd but you might have a bug or something on your mirror or have you bumped the front screen? the freznel and lenticular screens could have seperated. i would contact a local repair shop for an in home service call just to verify these 2 possible scenario's.

Mar 13, 2007 | Mitsubishi VS-60601 60" Rear Projection...

Not finding what you are looking for?

Open Questions:

Photography Logo

Related Topics:

250 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mamiya Photography Experts

kakima

Level 3 Expert

102366 Answers

isaac johny
isaac johny

Level 3 Expert

796 Answers

yadayada
yadayada

Level 3 Expert

71525 Answers

Are you a Mamiya Photography Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...