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01-29-2015, 11:48 AM - 4 Likes   #1
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Q7 & Telescope Triplet Apo Ed

Hi there,

I'm an old reader, but new member. Pentaxian with the Q's only.
I open a serarate thread here as I don't want to use "Q7 & Digiscoping"
Why ? because Digiscopie means a spotting scope + a compact camera (or, say, a DSLR or an hybrid PLUS lens) = between 10 to 20 lenses.
Telescope + DSLR body, or hybrid body = ...3 lenses ! (Triplet)
Less is more

If you want to learn more about it, you have to read first half of Bernall's thread (in French) here :
Une petite config pour d

To make it short, Bernall was kinda a mentor for me with this gear.

I don't know if you have defined a specific vocabulary in English for this technic, in French we're messing around "Reflex-scopie" "Reflexoscopie" etc... (still English roots...)

Triplet is better for CA. My own Telescope is an "old" MEADE 80ED series 5000, 480mm f6, not as good as the ORION 80EDT for CA (it uses Hoya glasses, FPL-51 equivallent I think, not FPL-53), but at the same level for sharpness. And...Cheaper, used.

Once again, let's make it short : I don't think there is any better ratio Price/Quality possible for telephoto shots ! Associate a m4/3 or a Pentax Q and that's it.
Of course there are pros & cons.

No more words, just some photos, my set up included
Remember : 2250mm.












crop



400m



crop












crop






crop








More photos in my thread (in French) here :
Pentax Q7 et Lunette Astro Triplet Apo ED.

01-29-2015, 12:07 PM   #2
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impressive detail...what are you using to attach the telescope to the Q?
01-29-2015, 12:33 PM   #3
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QuoteOriginally posted by Phenix jc Quote
If you want to learn more about it, you have to read first half of Bernall's thread (in French) here :
Une petite config pour d

To make it short, Bernall was kinda a mentor for me with this gear.


Hi JC

Very happy to read you here ! I was impatient !
01-29-2015, 12:35 PM   #4
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QuoteOriginally posted by pearsaab Quote
impressive detail...what are you using to attach the telescope to the Q?
A simple Pentax Q => T2 adapter
Just a few bucks from China
Mine is a high end Kipon : Very bad because of the inner reflections. This is a picture :



I used cardboard to make it better : The small bright triangle is a part of the adapter without cardboard : I think everybody understand now...

Another better solution (probably) :
C mount => T2 adapter via an astronomical shop, and then Pentax Q => C mount.
These adapters are shorter and probably with a better matt black inside.

Have also a look on Bernall' Set up on the "digiscoping" thread

01-29-2015, 12:37 PM   #5
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Nice pix and info. Have you seen the The "Astro-Q Club!" thread?
01-29-2015, 12:46 PM   #6
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QuoteOriginally posted by bernall Quote


Hi JC

Very happy to read you here ! I was impatient !
Hi Bernall,

"Give to Caesar what is Caesar's !"



Seriously, I didn't have a positive view on the Pentax Q before I read you !
01-29-2015, 12:53 PM   #7
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Welcome aboard! Wonderful introduction. Plusieurs très belles images.
01-29-2015, 01:04 PM   #8
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QuoteOriginally posted by Kendigitize Quote
Nice pix and info. Have you seen the The "Astro-Q Club!" thread?
Yes, I did, but I'm not a "connaisseur". It's a thread for Bernall though.

---------- Post added 01-29-15 at 01:06 PM ----------

QuoteOriginally posted by Docrwm Quote
Welcome aboard! Wonderful introduction. Plusieurs très belles images.
Merci Sir !

01-29-2015, 01:40 PM   #9
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Hello thank you for this thread. I have seen Bernalls posts on the other thread and am interested in learning more.
I have had good results with DA *300 but this looks even better.
01-29-2015, 02:31 PM   #10
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QuoteOriginally posted by Phenix jc Quote
A simple Pentax Q => T2 adapter
Just a few bucks from China
Mine is a high end Kipon : Very bad because of the inner reflections. This is a picture :



I used cardboard to make it better : The small bright triangle is a part of the adapter without cardboard : I think everybody understand now...

Another better solution (probably) :
C mount => T2 adapter via an astronomical shop, and then Pentax Q => C mount.
These adapters are shorter and probably with a better matt black inside.

Have also a look on Bernall' Set up on the "digiscoping" thread
amazing photography but even more amazing with what you are using
01-29-2015, 02:49 PM   #11
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QuoteOriginally posted by crewl1 Quote
Hello thank you for this thread. I have seen Bernalls posts on the other thread and am interested in learning more.
I have had good results with DA *300 but this looks even better.
Yes, I'm following you from the beginning ( ? well, more or less I guess). TY for your threads !
I should have come here earlier, but I lack time.
You have powerfull results with this combo, its's smaller, probably lighter, AND you can use a fast AF with a great IQ for short distances on an APS-C Camera. Think to that.
You do need a mobile solution with 400-600mm AF (or MF for crazy guys like me...Occasionaly) for hunt when your 2000mm+ is unusable !
The price is also to consider : My used telescope was under 400 EUR.
So, is the telescope better ? More powerfull for sure (500mm), and probably better, yes. But I don't know for sure, perhaps not THAT much.
Bernall convinced me : Less is more. 3 lenses APO, a crop sensor, Q, Nikon 1, m4/3, that's it.

---------- Post added 01-29-15 at 03:24 PM ----------

QuoteOriginally posted by pearsaab Quote
amazing photography but even more amazing with what you are using
TY. As a new member I can't edit, so you have to know that you must use a 5cm tube T2 on the Telescope side as a "spacer" to reach wildlife distances (and infinity). Very common in any Astro Shop.

It's not "easy" photography, but not different than Crewl1 with its DA 300mm. (and others).
The rear LCD of the Qs is awfull. Not precise enough. MF is (a pain) not easy, but doable.
BTW all these shots are taken hand held on the tripod, most of them with the SR (yes!).
I have now an IR remote, and I don't use the SR anymore.
01-29-2015, 03:32 PM   #12
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"Chapeau !"
01-29-2015, 04:30 PM   #13
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QuoteOriginally posted by Phenix jc Quote
You have powerfull results with this combo, its's smaller, probably lighter, AND you can use a fast AF with a great IQ for short distances on an APS-C Camera. Think to that.
Great stuff! Can you explain how AF works with a telescope?
01-29-2015, 04:54 PM   #14
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QuoteOriginally posted by rafa75 Quote
"Chapeau !"
Merci
QuoteOriginally posted by johnmflores Quote
Great stuff! Can you explain how AF works with a telescope?
TY. Read again please, I was answering to Crewl1 and its DA 300mm. A telescope + Q is purely MF and extremely powerfull : That's the point : You have to duplicate your gear with a shorter AF system (read 400-900mm) for speed and mobility.
01-29-2015, 05:19 PM   #15
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QuoteOriginally posted by Phenix jc Quote
Merci

TY. Read again please, I was answering to Crewl1 and its DA 300mm. A telescope + Q is purely MF and extremely powerfull : That's the point : You have to duplicate your gear with a shorter AF system (read 400-900mm) for speed and mobility.
AH. ok. THx.
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