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Takahashi FSQ-85mm ED Anyone?

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#1 AFScienceTime

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Posted 17 August 2014 - 03:15 AM

I decided that when I start astrophotography, I will start with a 80-90 mm refractor. So, I found the Takahashi FSQ-85 ED, and thought that this will be an excellent and portable telescope. The problem is, I can't find any good reviews. Does anybody own this telescope? Can you provide some information on it then? And some sample images perhaps?


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#2 LewisM

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Posted 17 August 2014 - 04:00 AM

One word - SUPERB.

 

Cn you read German? Or at least use Google translate: http://astro-foren.d...39150#post39150

 

Basically, the FSQ85 has a sample Strehl of 0.975 (1 is perfect), so it is VERY sharp.

 

I own an FSQ85 - I won't be replacing it any time soon. I much prefer it to the Big Brother FSQ106


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#3 tomcody

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Posted 17 August 2014 - 07:33 AM

There's a good owners review of the FSQ 85 and 106ED by Chris Thomasel on Astromart's review section.

Rex



#4 jzeiders

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Posted 17 August 2014 - 02:59 PM

Do a search on astrobin's big wall for FSQ 85 and look at the work posted there.

 

You can also find some articles by searching google.

 

I have the "Q" 106 and ting it is great. The baby Q or 85 mm is just as good and only 8 pounds opposed to the 15+ of the 106. Your 85 should be about perfect or photography and works week visually should you wish. It is built like a tank and will hold about any camera.

 

Jack


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#5 AFScienceTime

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Posted 18 August 2014 - 06:50 AM

One word - SUPERB.

 

Cn you read German? Or at least use Google translate: http://astro-foren.d...39150#post39150

 

Basically, the FSQ85 has a sample Strehl of 0.975 (1 is perfect), so it is VERY sharp.

 

I own an FSQ85 - I won't be replacing it any time soon. I much prefer it to the Big Brother FSQ106

 

Thank you! I know some German, so that review was really helpful.



#6 AFScienceTime

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Posted 18 August 2014 - 06:50 AM

One word - SUPERB.

 

Cn you read German? Or at least use Google translate: http://astro-foren.d...39150#post39150

 

Basically, the FSQ85 has a sample Strehl of 0.975 (1 is perfect), so it is VERY sharp.

 

I own an FSQ85 - I won't be replacing it any time soon. I much prefer it to the Big Brother FSQ106

 

Thanks! I will check it out!



#7 AFScienceTime

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Posted 18 August 2014 - 06:54 AM

Do a search on astrobin's big wall for FSQ 85 and look at the work posted there.

 

You can also find some articles by searching google.

 

I have the "Q" 106 and ting it is great. The baby Q or 85 mm is just as good and only 8 pounds opposed to the 15+ of the 106. Your 85 should be about perfect or photography and works week visually should you wish. It is built like a tank and will hold about any camera.

 

Jack

 

OK! Although the aperture is quite small, I guess it will do for some open cluster and brighter object observing. How would it compare to a 130mm Newtonian (my current grab and go scope) for visual? I mean, the aperture is almost the half, but the optics are much more superb.



#8 BillP

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Posted 18 August 2014 - 01:13 PM

I guess it will do for some open cluster and brighter object observing.

 

 

It's really meant for imaging...

 

http://www.buytelesc..._refractor.jpeg

 

http://ollypenrice.s...POSITE FL-M.jpg

 

http://pics.sternguc...g-906372.mx.jpg

 

http://sirius-cma.im...809_2600794.jpg

 

http://www.nightpixe...40_ha3_full.jpg

 

http://www.astronomy...Ha_25012012.jpg

 

http://www.jbassoe.d..._mac4_66pct.jpg



#9 LewisM

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Posted 19 August 2014 - 05:09 AM

It is, but it is still one of my favourite visual scopes. VERY bright, sharp, and flat.

 

Just a delightful scope in every sense.


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#10 thesubwaypusher

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Posted 31 August 2014 - 11:04 PM

It is, but it is still one of my favourite visual scopes. VERY bright, sharp, and flat.

 

Just a delightful scope in every sense.

 

Yes!

 

And you don't have to observe with it. Just sit and hold it and love it to death. My favorite Tak scope, for sure.


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#11 ehanes7612

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Posted 07 August 2017 - 05:34 PM

A little late to the thread...but I googled this right after placing my order for a Tak 85. Placed order for adapter and parallax rings also. So in two weeks should be imaging with this baby FSQ. Will add reducer later...was wondering how many people replaced the focuser?


Edited by ehanes7612, 07 August 2017 - 05:34 PM.


#12 vlad dumitrescu

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Posted 07 August 2017 - 06:15 PM

I just got this scope, july 2017, and shot terrific stuff right here 40km away from București, can t wait to test it out on skies up in the mountains. Both integrations contain 20 x 300s. One good piece of advice is to avoid shooting through 2 inch adaptors because they bring vignetting, make your own custom adapters using M72 threads. Focus is critical, do it  in the corners / third of the frame out to get best results with star shapes on the sides, the out of the box focuser as a little image shift and sometimes tilt, but it s totally fine if you plan on using it with a DSLR.

 

About the astro images, the first image is shot using a 6D and the second using a modded 550D. The conditions for the Trifid and Lagoon shot were bad seeing and below 15 degrees on the horizon. Also used it visually, great low power performer. I really like it because it is so compact that it fits in my photo backpack along with a guider&guidecam, two canon bodies, two lenses and my guiding netbook. Taking out the TSA102 would be too cumbersome in certain situations and would require an extra bag, so the 85 comes in handy. Pics enclosed and have fun with your new scope! laugh.gifVZiaHuQ.jpglaLuHBB.jpgCf6GA56.jpg

KNP4loL.jpg

u21vgJH.jpgkCSLy2v.jpg


Edited by vlad dumitrescu, 07 August 2017 - 06:33 PM.

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#13 ehanes7612

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Posted 07 August 2017 - 06:47 PM

thanks!!, yeah the stars on the Veil are super sharp...the Lagoon is nice..although I can see that it's not quite focused all the way..hard to do with a DSLR



#14 vlad dumitrescu

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Posted 07 August 2017 - 07:06 PM

Not focus, bad seeing and low on the horizon, read the description, otherwise if it were at the zenith stars would of been pinpoints. Actually the picture of the scope and mount shooting shows exactly how low the Trif and Lagoon were in the sky as it was shot during one of the exposures.


Edited by vlad dumitrescu, 07 August 2017 - 07:18 PM.


#15 ehanes7612

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Posted 07 August 2017 - 07:27 PM

I was referring to the greyish centers in the white stars..I have been told by others that that has to do with focusing...but maybe not



#16 CounterWeight

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Posted 08 August 2017 - 01:53 PM

I used the FSQ-85 almost exclusively for my narrow band long exposure imaging with the ST8300M and it was superb.  Worth every penny.

 

Greatly reduced two panel mosaic here, but each individual panel held up very well for printing up to 24" by 36".

 

rdx_veilmosaic_forprint_B_route3.jpg


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#17 CounterWeight

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Posted 08 August 2017 - 01:57 PM

Here is a single panel of another popular object...  again greatly reduced to fit here...

 

rdx2_large_B_5DDP_untouched-RGB.jpg

 

 

 


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#18 CounterWeight

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Posted 08 August 2017 - 02:00 PM

And another single panel image of another popular object... also greatly reduced...

 

rdx2_Crescent NGC6888 and Soap bubble.jpg

 

 


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#19 CounterWeight

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Posted 08 August 2017 - 02:12 PM

Here is a near 1:1 detail but also reduced for here of my attempt to capture the 'soap bubble' near the crescent nebula

 

detail from Crescent NGC6888 and Soap bubble.jpg

 

 

 

 

 

 

 

 


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#20 CounterWeight

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Posted 08 August 2017 - 02:13 PM

hope not too much posting, but I am a huge fan of the 'baby Q' for imaging !



#21 CounterWeight

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Posted 08 August 2017 - 02:16 PM

Often when you see an artifact in stars it is more due to the specific processing workflow, I used to remember what specifically caused it, think it had something to do with noise reduction.



#22 ehanes7612

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Posted 10 August 2017 - 02:18 PM

post as much as you want...my scope comes tomorrow but i have to wait another week for the mounting rings..

 

 

24 x 36?...that's promising

 

 

yeah, now that I remember , the grey in the white stars has to do with processing, I use multiscale linear transform in PI now, seems to better help with artifacts ..I know you can get a black center with unfocused stars though


Edited by ehanes7612, 10 August 2017 - 02:19 PM.


#23 CounterWeight

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Posted 11 August 2017 - 08:22 PM

When i imaged i was a minimalist about any processing, having good data I don't think you need all that synthetic stuff.  The terms i remember about processing artifacts were dimpling and moating, but I never felt the need to do much fancy stuff. Using 3nm for the SII and OIII and 5nm for the Ha, there were no gradients to deal with so background not an issue unless doing mosaics, and either MaximDL pro or PSCS5 worked easily.  For me having good data made the processing pipeline pretty simple.  To my eye the more processed (esp. with NR and related color noise) an image the more synthetic looking, but then it's all synthetic in a way?

 

Make sure and post pictures of your new Tak ! waytogo.gif



#24 ehanes7612

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Posted 11 August 2017 - 10:28 PM

Multiscale linear transform is actually a really simple device on pixinsight for noise reduction and allows you more precision. Other than removing light pollution with DBE (because I live in the city), it's the only post processing I do to clean up the image. I don't like to sharpen or enhance, as I feel it adds more noise and creates artifacts I cant live with.   If I lived in the desert (one day), I don't feel I would need it as the sporadic images I have captured in dark skies were very clean

 

 

This is my setup so far, waiting for the mounting rings and guidescope holder. I feel I finally have something that is worthy of my Losmandy G-11 (which after a year , I finally figured out how it ticks)

Attached Thumbnails

  • IMG_4849.JPG
  • IMG_4850.JPG

Edited by ehanes7612, 11 August 2017 - 10:32 PM.

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#25 ehanes7612

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Posted 12 August 2017 - 01:05 AM

I did some test shots with the scope tonite. Need more but I think the scope is fine..it's very sharp. I was worried that I got some field curvature (the kind you get when a reducer is not properly backspaced, elongated stars circling around the center), so maybe I didnt get proper focus??...but when I removed the Baader 3.5 nm Hafilter..and had no filter , I got an image that looked like tilt stars streaking from the center but worse toward one corner, ....which I think there may just be an issue with the adapter I am using for the camera 


Edited by ehanes7612, 12 August 2017 - 01:38 AM.



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