SolarChat!

Solar B

Agreed ... 50/50 , 60/50 , 60/60 there's little actual gain in visible resolution.

You've got to up the aperture big style to see anything really different.

but then as I keep saying is upping the ap a real benefit/improvement at all ?

Brian

Solar B

Yes the Lunt 12mm BFs are fine I've owned / used a few ... so that's kinda the end of the discussion :) ... I had to change an ITF on a 5 recently but will be replacing another on a BF10 shortly so ... I'm personally "delighted" with the Maier ITF option ... brings DS to me at 40mm to an a...

Solar B

Hello Bob Yes everything is subjective to the individual ... having replaced the rusty ITF on my BF5 with this maierphotonics.com/656bandpassfilter.aspx I note the difference in brightness is astonishing !! (at only 40mm) so I'd recommend that anyone suffering with a dull image through their Coronad...

Solar B

Imho I reckon opting for a 60/60 over a 60/50 would achieve about a 5 to 10% gain in reality regardless of the maths ... if requiring greater mags then try a Quark (hard work but the mags are of the scale) however that's not necessarily any advantage at all upon viewing our glorious luminary. If ima...

Solar B

Thanks Rupert ... I don't think it will as the Baader filters DS (SB narrow) to , I've enquired about
it's likely / possible bandwidth.

Brian

Solar B

H-line is great news for me as I'm visual only ... do you know if this
could be stacked with the Baader Cak filter Rupert ?

Solar B

Hi Folks

I'm wondering if anyone knows
where I can source one of the
wee neoprene screws in the image
or similar ?
It's not the same size as the PST
EP holder set screw.

Thanks ... Brian

Solar B

Great images again with the new configuration Alexandre

Can you also revert back to white light images with the T250 ?

Brian

Solar B

Thanks John ... That's great ... understood

Brian

Solar B

Slightly of topic ... again I say that I find Quarks to be hard work visually ! They are not "nearly" as easy to use as normal HA scope configurations ... the vignetting is terrible , you have to have your eye exactly in the right position to see things regardless of EP ... they do require...

Solar B

Hello John
I now have the new ITF ... in the
image you can just make out one
of the hole impressions I think you
refer to ... do I have to apply a lot
of pressure to them to release the
existing ITF.

Brian

Solar B

I use my Quark visually in 66 to 150mm scopes with a selection of 25 to 40mm EPs
and have to report that I find the image brightness to be normal to bright
compared to other HA filters I have experience with ... so if dull I would suggest
there may be an issue !

Brian

Solar B

Personally ... I'll leave the imaging & gizmos to the experts ... And yes imho

"visually" very little has changed in the last 10 yrs...sure you can zoom in on features

with a quark/150 (seeing permitted) but still "nothing" beats a front mounted DS

view.

Brian

Solar B

This is Great Alexandre my Solar Friend

... look forward to many many more

Brian

Solar B

Hey Thanks John

I have contacted them already ...

Oh was wondering how the existing ITF is removed from the barrel to ?

Brian

Solar B

Dearest Solar Friends

I was sold this by an unscrupulous
astronomer and am now required to
repair the item ... any help advice
would be greatly appreciated
It is obviously a rusty ITF

Brian

Solar B

Great Image .... I had a quick DS look at it this morning and was amazed at
how dark the now filament appeared !

Brian

Solar B

Ok thanks Mark ... was hoping to pick up a used one ... I think they're onto
a new version now (2) wonder what the difference is between old & new ?

Brian

Solar B

Hi Folks

I'm looking for a Lunt Cak filter ... 6 or 12mm .... please can you
let me know if you have one available and it's cost.

Thanks ... Brian

Solar B

Ok ... Cool & Thanks

... will have a look for one.

Brian

Solar B

Hi Folks I was wondering if anyone could give me an indication of what you would be likely to see with say a 6mm filter .... having owned a PST Cak in the past I recall the view was very dull .... they were imaging only devices. I did once briefly see a bright Cak image (which wasn't safe to view) I...

Solar B

All good

Brian

Solar B

Thanks Mike .... I don't like the fact that the adaptor can be completely removed
as how do you know how much thread is in place without holding the adaptor
from the inside and turning the body of the wedge ?

Brian

Solar B

Yes the same Mike ... imaging version but is your EP holder/adaptor ring
easily removed as in my image ? ... I'm used to using the AE solarview 2
which has the ND3 preinstalled.

Brian

Solar B

Hi Folks

Is the adaptor in the foreground the one that's best suited for fitment
of the ND3 ... and then perhaps the solar con could be installed
to the nose piece ... this would be for visual use ... or what would be
your recommendation.

Brian

Solar B

I'm loving it , loving it , loving it

Yes I do really like it !

Brian

Solar B

I am looking at obtaining an affordable ERF for the 150 .... Currently using the baader 35nm which is effective ... but I can see turbulence from within the ota as expected ... I guess I'm just after something to take the edge of the heat to use in conjunction with the 35nm Would something like this...

Solar B

An astonishing series of images .... love the feeling of depth in the final one
... I'd love to be able to actually see something like that !

Brian

Solar B

Very nice set of images there Derek

Brian

Solar B

May give it a go Mark

Brian

Solar B

Thanks guys

.... I wouldn't take my reviews to seriously though

Brian

Solar B

Well the 150 does offer great resolution
of proms & bit more surface detail than expected given the aperture ,
but you guessed it ... the PST wins again for its effortless
FD views

Solar B

Ok thanks Valery .... I thought it might have been at only 40mm

Brian

Solar B

Probably a silly question but could you possibly stack a PST by
removing ERF & BF and then place a quark in its EP holder ?

Brian

Solar B

WoW that's really Great that you guys caught up and were able to image
together .... A Magical array of pics

Brian

Solar B

Just Jawsome ... the final image .... shows a very dark filament indeed
I don't recall ever seeing the like before .... Thanks

Brian

Solar B

That's a Great capture .... I was having a good look at this one today to.

Brian

Solar B

Looks pretty cool.

Solar B

Indeed goodbye

Solar B

Yeah no probs storing them over the winter (inside) I have always stored

BFs with those wee desiccant bags as they don't like any moisture.

Brian

Solar B

Oh dear ... picture that moment in the film "Scanners" where the guys head
explodes ... that's how I feel trying to get mine all round this !
and thanks Ken for your help.

Brian

Solar B

Totally agree Bob ... rear mounted etalons are superb ... however what I had wrongly thought / believed before trying some and reading your article and indeed others ... looking to increase they're contrast ... is that a 0.3A(rear mounted) would noticeably outperform (on contrast & surface detai...

Solar B

Hi Luke I'm not able to compare with any DS filters at the mo as I don't have any ... but was relying on my memory of using such as you mention (60mmDS) .... and as I recall the contrast and detail the quark offers is somewhat less .... I currently use the Quark with a equinox 66 and 40mm EP which d...

Solar B

Many Thanks Bob .... now whilst I do not completely understand all the terminology that you discuss here (I am at least trying to) this is a "very" important lesson for me personally .... meaning that in future I will not be perusing rear mounted SS etalons but will revert back to DS front...

Solar B

Lovely / stunning ... yea good seeing here to today Pedro ... 2403 is mega

Brian

Solar B

Well most say that the quark
beats the PST hands down but not
I...esp for the nice evenly illuminated
full disc views the PST offers

Brian

Solar B

WoW superb result indeed .... very well done .... I've never heard of anyone
successfully repairing a de-contacted etalon before

Brian

Solar B

I did see a similar 90mm up for sale once ... it was also black and came with tilting BF15 as I recall to ... and also was interestingly rated as a <0.6a , I had an early SV50 (2003) which had a tilting internal BF and the etalon had to be tilted by a very small Allen key before Ken moved to the now...

Solar B

Hats of to you Sir ... for your incredible engineering and imaging skills ...

Brian

Solar B

Cloudy as hell ... but I'm out with the PST ... that's what ya got to do
if your a Solar astronomer living here

... Plenty of activity though

Brian

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