Canon Bob
Loves the Enemy
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- Bob
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A warning here folks....
For the past few weeks I've been using a Loupe on the LCD of my 1D3 for Liveview focussing for macro shots....some tripod work and some hand-held. The tripod stuff was mainly hoppers, crickets and spiders in the grass and brambles. It involved setting up the tripod, roughly focussing and then snipping the odd blade of grass or a leaf that was interferring with the composition before accurately focussing and taking the shot.
After a few days, I started to see randomly shaped yellow spots on the LCD screen...hmmmm
It seems that the loupe has focussed the sun and burnt areas of pixels so that they just show up yellow. Nothing to be lost now so I tried some quick tests to see what angle and how quickly the damage is done....clearly some of the damage occurred whilst carrying the tripod mounted camera over my shoulder.
My Zacuto Z-Finder will focus the sun from an angle of 30 degrees to the lens axis....ie, quite a way off being directly pointing at the sun.
With the sun over your shoulder, it's possible to burn some LCD pixels in only 4 seconds!....much less time than it takes me to stealthily trim the odd leaf or blade of grass. Increasing the angle increases the time to destruction but not by much.
The lenses on Hoodman or LCDVF loupes may have a slightly different spherical surface to the Z-Finder but that will only increase or reduce the angle whereby the sun can do its dirty deed.
Carelessness has left me with a hefty repair bill unless I face life with all my subjects looking like a jaundiced Mr Blobby on the review screen or Liveview. Anyone else using one of these should make sure it isn't left uncovered for even the shortest time when the sun is out (if it does still come out overthere?)
Bob
For the past few weeks I've been using a Loupe on the LCD of my 1D3 for Liveview focussing for macro shots....some tripod work and some hand-held. The tripod stuff was mainly hoppers, crickets and spiders in the grass and brambles. It involved setting up the tripod, roughly focussing and then snipping the odd blade of grass or a leaf that was interferring with the composition before accurately focussing and taking the shot.
After a few days, I started to see randomly shaped yellow spots on the LCD screen...hmmmm
It seems that the loupe has focussed the sun and burnt areas of pixels so that they just show up yellow. Nothing to be lost now so I tried some quick tests to see what angle and how quickly the damage is done....clearly some of the damage occurred whilst carrying the tripod mounted camera over my shoulder.
My Zacuto Z-Finder will focus the sun from an angle of 30 degrees to the lens axis....ie, quite a way off being directly pointing at the sun.
With the sun over your shoulder, it's possible to burn some LCD pixels in only 4 seconds!....much less time than it takes me to stealthily trim the odd leaf or blade of grass. Increasing the angle increases the time to destruction but not by much.
The lenses on Hoodman or LCDVF loupes may have a slightly different spherical surface to the Z-Finder but that will only increase or reduce the angle whereby the sun can do its dirty deed.
Carelessness has left me with a hefty repair bill unless I face life with all my subjects looking like a jaundiced Mr Blobby on the review screen or Liveview. Anyone else using one of these should make sure it isn't left uncovered for even the shortest time when the sun is out (if it does still come out overthere?)
Bob
