[rollei_list] Planar lens coatings

  • From: todd belcher <todd_belcher@xxxxxxxxx>
  • To: rollei_list@xxxxxxxxxxxxx
  • Date: Mon, 23 Jan 2006 14:14:02 -0800

Hi Sui Fai,

The change on the 2.8 Planar was definitely from yellow to purple. I think the same is true for the 3.5 lenses. Are you sure your first issue 3.5 F Planar is not a replacement? Check the serial number of the lenses.

regards,
todd



On 23-Jan-06, at 1:41 PM, siufai@xxxxxx wrote:

The coatings to which I refer are the
front outer element of the 2.8 Planar, which has a yellowish cast to
it. After about 1965, the front element has a sort of purple cast.

Todd, my two 3.5 Planars seems to be the other way around. My 1st model 3.5F
Planr is purple while the slightly later 3.5E3 is yellow. I always thought that
the changed from purple to yellow.

My first model 2.8F indeed has a yellowish front lens.

Best regards,

Siu Fai
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