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
Search found 185 matches
- Wed Nov 11, 2015 11:03 pm
- Forum: Solar Scope Modifications
- Topic: From 50 to 60 DS?
- Replies: 23
- Views: 8285
- Sat Oct 31, 2015 9:50 pm
- Forum: Solar Scope Modifications
- Topic: From 50 to 60 DS?
- Replies: 23
- Views: 8285
Re: From 50 to 60 DS?
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...
- Sat Oct 31, 2015 2:33 pm
- Forum: Solar Scope Modifications
- Topic: From 50 to 60 DS?
- Replies: 23
- Views: 8285
Re: From 50 to 60 DS?
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...
- Sat Oct 31, 2015 12:38 am
- Forum: Solar Scope Modifications
- Topic: From 50 to 60 DS?
- Replies: 23
- Views: 8285
Re: From 50 to 60 DS?
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...
- Wed Oct 28, 2015 6:23 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: New Calcium Quark
- Replies: 7
- Views: 4320
Re: New Calcium Quark
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
it's likely / possible bandwidth.
Brian
- Wed Oct 28, 2015 10:27 am
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: New Calcium Quark
- Replies: 7
- Views: 4320
Re: New Calcium Quark
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 ?
could be stacked with the Baader Cak filter Rupert ?
- Tue Oct 20, 2015 6:42 pm
- Forum: Solar Scope Modifications
- Topic: SM40 neoprene screw
- Replies: 1
- Views: 2024
SM40 neoprene screw
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
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
- Sun Oct 18, 2015 12:20 pm
- Forum: This is SolarChat !!
- Topic: AR2431 with the Ha Solar Newton T250
- Replies: 14
- Views: 3097
Re: AR2431 with the Ha Solar Newton T250
Great images again with the new configuration Alexandre
Can you also revert back to white light images with the T250 ?
Brian
Can you also revert back to white light images with the T250 ?
Brian
- Fri Oct 16, 2015 12:37 pm
- Forum: Solar Scope Modifications
- Topic: Rusty BF5
- Replies: 7
- Views: 3767
Re: Rusty BF5
Thanks John ... That's great ... understood
Brian
Brian
- Thu Oct 15, 2015 10:15 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Quark visual image too dim, please help
- Replies: 9
- Views: 4987
Re: Quark visual image too dim, please help
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...
- Thu Oct 15, 2015 8:28 pm
- Forum: Solar Scope Modifications
- Topic: Rusty BF5
- Replies: 7
- Views: 3767
Re: Rusty BF5
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
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
- Wed Oct 14, 2015 5:38 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Quark visual image too dim, please help
- Replies: 9
- Views: 4987
Re: Quark visual image too dim, please help
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
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
- Sun Oct 04, 2015 9:57 pm
- Forum: This is SolarChat !!
- Topic: Where to next?? Future direction of solar imaging
- Replies: 16
- Views: 1339
Re: Where to next?? Future direction of solar imaging
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
"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
- Sun Oct 04, 2015 8:48 pm
- Forum: This is SolarChat !!
- Topic: Solar Newton - In Ha now - First pics
- Replies: 15
- Views: 3378
Re: Solar Newton - In Ha now - First pics
This is Great Alexandre my Solar Friend ... look forward to many many more
Brian
Brian
- Sat Oct 03, 2015 10:05 am
- Forum: Solar Scope Modifications
- Topic: Rusty BF5
- Replies: 7
- Views: 3767
Re: Rusty BF5
Hey Thanks John
I have contacted them already ...
Oh was wondering how the existing ITF is removed from the barrel to ?
Brian
I have contacted them already ...
Oh was wondering how the existing ITF is removed from the barrel to ?
Brian
- Fri Oct 02, 2015 7:31 pm
- Forum: Solar Scope Modifications
- Topic: Rusty BF5
- Replies: 7
- Views: 3767
Rusty BF5
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
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
- Tue Sep 22, 2015 4:15 pm
- Forum: This is SolarChat !!
- Topic: Lunchtime DSLR full disk 22/9/15
- Replies: 4
- Views: 438
Re: Lunchtime DSLR full disk 22/9/15
Great Image .... I had a quick DS look at it this morning and was amazed at
how dark the now filament appeared !
Brian
how dark the now filament appeared !
Brian
- Mon Sep 21, 2015 6:59 am
- Forum: Solar Astronomy Shop and Swap
- Topic: Looking for a Lunt Cak
- Replies: 2
- Views: 3585
Re: Looking for a Lunt Cak
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
a new version now (2) wonder what the difference is between old & new ?
Brian
- Sun Sep 20, 2015 10:34 pm
- Forum: Solar Astronomy Shop and Swap
- Topic: Looking for a Lunt Cak
- Replies: 2
- Views: 3585
Looking for a Lunt Cak
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
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
- Sun Sep 20, 2015 10:26 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Lunt Cak filters
- Replies: 4
- Views: 3015
Re: Lunt Cak filters
Ok ... Cool & Thanks ... will have a look for one.
Brian
Brian
- Sun Sep 20, 2015 9:20 am
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Lunt Cak filters
- Replies: 4
- Views: 3015
Lunt Cak filters
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...
- Tue Sep 15, 2015 10:05 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Dream come true!
- Replies: 113
- Views: 50811
Re: Dream come true!
All good
Brian
Brian
- Tue Sep 15, 2015 8:02 am
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Cool Baader Wedge
- Replies: 4
- Views: 3133
Re: Cool Baader Wedge
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
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
- Mon Sep 14, 2015 10:37 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Cool Baader Wedge
- Replies: 4
- Views: 3133
Re: Cool Baader Wedge
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
easily removed as in my image ? ... I'm used to using the AE solarview 2
which has the ND3 preinstalled.
Brian
- Mon Sep 14, 2015 8:55 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Cool Baader Wedge
- Replies: 4
- Views: 3133
Cool Baader Wedge
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
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
- Sun Sep 06, 2015 9:20 am
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Dream come true!
- Replies: 113
- Views: 50811
Re: Dream come true!
I'm loving it , loving it , loving it
Yes I do really like it !
Brian
Yes I do really like it !
Brian
- Sat Sep 05, 2015 9:41 pm
- Forum: Solar Scope Modifications
- Topic: Budget 150mm ERF .... quark
- Replies: 8
- Views: 2860
Budget 150mm ERF .... quark
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...
- Fri Sep 04, 2015 8:07 am
- Forum: This is SolarChat !!
- Topic: Solar Activity Aug 27-28-29 with refractor 230mm
- Replies: 17
- Views: 1259
Re: Solar Activity Aug 27-28-29 with refractor 230mm
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
... I'd love to be able to actually see something like that !
Brian
- Fri Sep 04, 2015 7:41 am
- Forum: This is SolarChat !!
- Topic: Thursday a Little Ha
- Replies: 8
- Views: 748
Re: Thursday a Little Ha
Very nice set of images there Derek
Brian
Brian
- Thu Sep 03, 2015 3:43 pm
- Forum: Solar Scope Modifications
- Topic: Stacking PST with a quark
- Replies: 8
- Views: 4847
Re: Stacking PST with a quark
May give it a go Mark
Brian
Brian
- Thu Sep 03, 2015 3:41 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: PST v quark at 150
- Replies: 5
- Views: 3173
Re: PST v quark at 150
Thanks guys .... I wouldn't take my reviews to seriously though
Brian
Brian
- Wed Sep 02, 2015 3:40 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: PST v quark at 150
- Replies: 5
- Views: 3173
PST v quark at 150
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
of proms & bit more surface detail than expected given the aperture ,
but you guessed it ... the PST wins again for its effortless
FD views
- Wed Sep 02, 2015 2:59 pm
- Forum: Solar Scope Modifications
- Topic: Stacking PST with a quark
- Replies: 8
- Views: 4847
Re: Stacking PST with a quark
Ok thanks Valery .... I thought it might have been at only 40mm
Brian
Brian
- Wed Sep 02, 2015 8:56 am
- Forum: Solar Scope Modifications
- Topic: Stacking PST with a quark
- Replies: 8
- Views: 4847
Stacking PST with a quark
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
removing ERF & BF and then place a quark in its EP holder ?
Brian
- Wed Sep 02, 2015 8:08 am
- Forum: This is SolarChat !!
- Topic: Alexandra's visit (20150831)
- Replies: 17
- Views: 1820
Re: Alexandra's visit (20150831)
WoW that's really Great that you guys caught up and were able to image
together .... A Magical array of pics
Brian
together .... A Magical array of pics
Brian
- Mon Aug 31, 2015 3:02 pm
- Forum: This is SolarChat !!
- Topic: ULTRA narrow (< 0,2A) Double Stack through 150mm scope
- Replies: 36
- Views: 3586
Re: ULTRA narrow (< 0,2A) Double Stack through 150mm scope
Just Jawsome ... the final image .... shows a very dark filament indeed
I don't recall ever seeing the like before .... Thanks
Brian
I don't recall ever seeing the like before .... Thanks
Brian
- Mon Aug 31, 2015 2:56 pm
- Forum: This is SolarChat !!
- Topic: Giant proms today 31th of August
- Replies: 9
- Views: 1124
Re: Giant proms today 31th of August
That's a Great capture .... I was having a good look at this one today to.
Brian
Brian
- Sun Aug 30, 2015 8:09 am
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Combo
- Replies: 1
- Views: 2406
Combo
Looks pretty cool.
- Sat Aug 29, 2015 10:19 pm
- Forum: This is SolarChat !!
- Topic: Adios 2403
- Replies: 0
- Views: 7927
Adios 2403
Indeed goodbye
- Sat Aug 29, 2015 2:42 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: quark and low temperature storage
- Replies: 4
- Views: 3106
Re: quark and low temperature storage
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
BFs with those wee desiccant bags as they don't like any moisture.
Brian
- Sat Aug 29, 2015 11:32 am
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Some more observations on filter performance
- Replies: 16
- Views: 8073
Re: Some more observations on filter performance
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
explodes ... that's how I feel trying to get mine all round this !
and thanks Ken for your help.
Brian
- Wed Aug 26, 2015 3:09 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Some more observations on filter performance
- Replies: 16
- Views: 8073
Re: Some more observations on filter performance
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...
- Mon Aug 24, 2015 9:02 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Some more observations on filter performance
- Replies: 16
- Views: 8073
Re: Some more observations on filter performance
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...
- Mon Aug 24, 2015 8:22 am
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Some more observations on filter performance
- Replies: 16
- Views: 8073
Re: Some more observations on filter performance
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...
- Sun Aug 23, 2015 10:29 pm
- Forum: This is SolarChat !!
- Topic: Today's SUN (20150823) with GOOD seeing
- Replies: 14
- Views: 1010
Re: Today's SUN (20150823) with GOOD seeing
Lovely / stunning ... yea good seeing here to today Pedro ... 2403 is mega
Brian
Brian
- Sun Aug 23, 2015 10:50 am
- Forum: This is SolarChat !!
- Topic: PST v Quark
- Replies: 1
- Views: 391
PST v Quark
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
beats the PST hands down but not
I...esp for the nice evenly illuminated
full disc views the PST offers
Brian
- Sun Aug 23, 2015 9:22 am
- Forum: Solar Scope Modifications
- Topic: Etalon reconnecting, Success !!!
- Replies: 5
- Views: 2746
Re: Etalon reconnecting, Success !!!
WoW superb result indeed .... very well done .... I've never heard of anyone
successfully repairing a de-contacted etalon before
Brian
successfully repairing a de-contacted etalon before
Brian
- Fri Aug 21, 2015 12:01 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Interesting piece of Lunt/Coronado solar history
- Replies: 4
- Views: 3039
Re: Interesting piece of Lunt/Coronado solar history
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...
- Fri Aug 21, 2015 8:32 am
- Forum: This is SolarChat !!
- Topic: New 305mm solar Cassegrain & AR 2403 204 mm refractor Ha/WL
- Replies: 15
- Views: 1295
Re: New 305mm solar Cassegrain & AR 2403 204 mm refractor Ha
Hats of to you Sir ... for your incredible engineering and imaging skills ...
Brian
Brian
- Fri Aug 21, 2015 8:25 am
- Forum: This is SolarChat !!
- Topic: Terrible Seeing
- Replies: 1
- Views: 422
Terrible Seeing
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
if your a Solar astronomer living here ... Plenty of activity though
Brian