Hello Fellow ABers,
I bought a brand new (mistake, I know) Duo filter from ASKAR in the summer to complement my Optolong L-Extreme (of which I am very pleased with) so that I can use both on my 2 main rigs. And I have used it for the past 5 months but on subjects which, in the main, are reasonably bright intrinsically at the two transmission bands of the filter (Ha and OIII). However, on very faint subjects, I found the results more than somewhat lacking in terms of overall brightness.
Originally I though it was due to the vagaries of air transparency, which can be very poor where I live. But as results are stacking up I cannot discount the possibility that in fact I have been landed a dud. Sadly it is too late to return and not sure I can demonstrate that the results or lack thereof are due to the filter and not something else (despite the something else never have changed, at least for the image train). To make it blunt, comparisons between the same subject shot with the L-eXtreme and the Duo D1 are depressing at the thought of the hours spent for so little return (from the D1, that is).
Am I the only one with disappointing results or are there more out there in AB?
Thanks,
Andrea
I bought a brand new (mistake, I know) Duo filter from ASKAR in the summer to complement my Optolong L-Extreme (of which I am very pleased with) so that I can use both on my 2 main rigs. And I have used it for the past 5 months but on subjects which, in the main, are reasonably bright intrinsically at the two transmission bands of the filter (Ha and OIII). However, on very faint subjects, I found the results more than somewhat lacking in terms of overall brightness.
Originally I though it was due to the vagaries of air transparency, which can be very poor where I live. But as results are stacking up I cannot discount the possibility that in fact I have been landed a dud. Sadly it is too late to return and not sure I can demonstrate that the results or lack thereof are due to the filter and not something else (despite the something else never have changed, at least for the image train). To make it blunt, comparisons between the same subject shot with the L-eXtreme and the Duo D1 are depressing at the thought of the hours spent for so little return (from the D1, that is).
Am I the only one with disappointing results or are there more out there in AB?
Thanks,
Andrea
