Who are we?  Featured Cameras  Articles  Instruction Manuals  Repair Manuals  The Classic Camera Repair Forum  Books  View/Sign Guestbook

Praktica BC1 Electronic - bottom thir... Log in | Log Out | Topics | Search
Moderators | Register | Edit Profile

Classic Camera Repair » Archives-2008 » Praktica BC1 Electronic - bottom third of prints black « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Johnlees45
Tinkerer
Username: Johnlees45

Post Number: 60
Registered: 07-2006

Rating: N/A
Votes: 0 (Vote!)

Posted on Friday, August 01, 2008 - 03:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hi, all. Occasionally (3 or 4 in a 36 roll) the bottom third of prints from this camera comes out as black, lightening to proper exposure about a third of the way up from the bottom over about half an inch (on a 7" X 5" print), the top two thirds being correctly exposed.
Any advice, please? I have already spent £many on this camera.
Top of pagePrevious messageNext messageBottom of page Link to this message

Sillyconguru
Tinkerer
Username: Sillyconguru

Post Number: 15
Registered: 12-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, August 03, 2008 - 11:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

If the transition from black to correctly exposed is gradual (as you state) then suspect that the reflex mirror isn't raising fully, a shutter problem would (more than likely) manifest itself as a sharp transition.

I'm sorry that I cannot offer any advice on repair.
Top of pagePrevious messageNext messageBottom of page Link to this message

Dgillette4
Tinkerer
Username: Dgillette4

Post Number: 233
Registered: 04-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, August 03, 2008 - 12:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Are these flash pictures or non flash? If flash it could be shutter is too high for proper sync. If not then shutter could use service.
Top of pagePrevious messageNext messageBottom of page Link to this message

Johnlees45
Tinkerer
Username: Johnlees45

Post Number: 61
Registered: 07-2006

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, August 05, 2008 - 02:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Thanks both. These are non flash pictures and the trasition is gradual over about a third of an inch, i.e. counting up from the bottom of a 5" high print there is one and two thirds inches of black, a third of an inch gradual transition, and then 3" of normal exposure. The measurements are the same on every faulty print, but as I said it is an intermittent fault,about 3 or 4 prints in every 36 roll.

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a private posting area. Only registered users and moderators may post messages here.
Password:
Options: Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Last Week | Tree View | Search | User List | Help/Instructions | Program Credits Administration