Possible Clues:

• Photographic apparatus
• The press will give one a negative result from this
• What is heard in this may not be seen
• Lightproof box with a lens
• There's no public in this to get the picture
• Just picture with this how eccentric the age is
• TV studio item
• One never lies about onset of middle age
• Private room taken on holiday
• It's not to be heard when it's heard in this