[rollei_list] Re: Rollei H1, UV, R1, R2 and R1,5 filters

  • From: CarlosMFreaza <cmfreaza@xxxxxxxxx>
  • To: rollei_list@xxxxxxxxxxxxx
  • Date: Sun, 6 Nov 2011 11:56:41 -0300

I meant 1967, not 1957
Carlos

2011/11/6 CarlosMFreaza <cmfreaza@xxxxxxxxx>:
> As I commented some weeks ago, I have a blog entry dedicated to Rollei
> filters and I have received some questions about them. There is some
> confusion about Rollei H1, Rollei UV, Rollei R1, Rollei R2 and Rollei
> R1,5 filters function:
>
> Rollei UV: This is a filter for B&W photography only, it does not work
> fine for color photography because it has a color tint, this filter
> has a strong effect to block UV rays, it’s very goodfor high mountain,
> snow, water surfaces,  high and distant landscapes.
>
> Rollei H1: It could be used for B&W photography however it was made
> from 1950 for color photography mainly. Rollei literature says this is
> an UV filter and Skylight filter for landscapes with haze, to
> eliminate the blue cast coming from the atmosphere, the UV filtering
> is soft and perhaps it wouldn’t work fine at the high mountain. Rollei
> also says this is a filter for Xenar and Tessar lenses; Planar,
> Xenotar and Sonnar needn’t it, thanks to the “glass” used to make
> these lenses ( some Rollei brochures say it), anyway Rollei
> manufactured the filter for BII and BIII too but for fewer years than
> for BI. Firsts color films were very sensitve for the blue and UV
> light.
>
> Rollei R1: This color conversion filter has an UV filter  effect and
> slight color warming effect for Tessar and Xenar lenses, it does not
> have UV filter effect for Xenotar, Planar and Sonnar but it has slight
> color warming effect for these lenses.
>
> Rollei R2: It’s a bit stronger than R1 and has UV filter effect and
> soft warming effect for every Rollei TLR lens.
>
> Rollei R 1,5: This filter was manufactered from 1957, after R1, R2, R5
> and R11 color conversions filters were no longer manufactured (1966),
> it would be equivalent regarding a Skylight 81 A or B filter, Rollei
> manufactured this filter up to a few years ago and perhaps it’s still
> manufactured.
>
> It’s interesting to read about UV and Skylight filters tests, there
> are a lot of differences for the filter effect according the
> manufacturer, coating, glass, design, despite the glasses look so
> similar.
>
> Carlos
>
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