P3D Re: Realist 2.8 Lens Question

[Marcus Warrington <marcusw@xxxxxxxxx>]

>>On a different note.. I have a (cheap) Realist 2.8 and I have noticed that if I take the 
>>back off and look through the lenses, they appear to have lots of little air bubbles in 
>>them. I assume this isn't normal ? My 3.5 doesn't have them , but then I understand
>>that the 3.5 has air spaced lenses and that the 2.8 has elements that are "glued" 
>>together.. is this true ? Is there a way to repair the lenses or should I just look out for
>>a better 2.8 ?

>I think the 3.5 has 3 lens elements airspaced while the 2.8 has 4 elements,
>a pair of which is cemented.  

I've had the lenses in my 3.5 apart so I know they consist of 3 individual elements..
I haven't had the 2.8's apart... yet..

>Just curious, can you see an effect in the optical quality?

I hadn't noticed any obvious effects, but I did have one shot of a tree with the light
behind it that had lots of smal "burst of light" around the branches.. wierd..
Just curious as to if other people had similar lenses.. and if they had any problems.

Marcus ?8^p
               Next Third Dimension Society Meeting Tuesday 17th Nov at 
       Unsworth South Social Club , Whitefield (Junction 17 of M62) 8pm Start.





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