I........ If you deal with the lowest bidder it’s well to add something for the risk you run. And if you do that, you will have enough to pay for something better.”
.......Cheers Peter
That's how the Aircraft industry works even in Military Aircraft......usually cheapest bidder win tender.
I seem to remember a Cn thread stating TV uses Japan glass which is assembled in Taiwan the finished In The US eg testing etc, ep's are the same I think
Yes - but no one wants to be on the bad one off the production line when the wings fall off the plane.
Wouldn't worry about it.....gotta die of somethin' Just gotta hope it is later than sooner......preferably much later. Someone said to me recently that the trouble is that I am getting older. I told him that I have no problem with that, as long as I keep getting older.
TV EPs are entirely made/assembled by sub-contracted factories to TV in either Japan or Taiwan (dependent on which particular model of EP - for example T6 Nags - Japan, Panoptics - Taiwan). Thereafter, every single EP is sent over to TV in the US and each EP is thereafter QC/tested by TV in their own workshop to check that each EP is to their specs and standards.
However, with the exception of the great mystery as to where the refractor glass is actually smelted (from Japan but precisely which manufacturer) every other element of making their refractors is done in TV's own facility in the US. I should add that they now use feathertouch focusers but previously made their own.
They also have a quite unique production process which involves a single craftman assembly system. So, the production process doesn't involve the common A-B-C-D-E stepped passage production line from multiple workers specialising in a particular step but a single craftman who makes the entire scope from start to finish and thus undertakes each step (i.e. one person does all steps A through to E).
Via this process when any TV scope comes in for a repair/clean etc they can identify who made each particular scope by the serial number and it is then given to that same craftman who will undertake any necessary work etc - hence their claim about each scope is genuinely hand-made.
Gave the NG version a whirl tonight, Jupiter is as clear as a bell even with the 6mm. Lost a bit of detail with the 6mm and the 4x powermate as the conditions were warmish.
No visible CA. Took a look at Orion's nebula, gorgeous. Finally the fullish moon but it was waaay too bright, details were there though. Very impressive scope. There is some field curvature with a wide eyepiece, so photography may need a field flattener. Will the f6.3 celestron work?
I think I will be selling the SGT C8 as I doubt I will be using it much.
I've seen some of JJJ's pictures and starting to wonder...
Does anyone else have some photo's they have taken recently with an NG or Hioptic 127?
I had an NG CF127 last year but the image quality was dismal.
Pinching of some sort somewhere that i was never able to find. Resulted in triangles taken out of stars.
Excessive star halos is another problem - especially in the blue wavelengths.
Looking at JJJ's pictures i see her bright stars also have excessive bloat as if focus is soft/out.
I am not alone it seems with those issues. This site: http://deepspaceplace.com/ed127.php
has a better write up on it, but it appears that the blue wavelength color corrections are sloppy and or chromatic abberations are quite high. This can be partly corrected with refocusing if using a mono camera with blue filter, but for a OSC it isn't an option.
I've attached two photos as examples. Blue star's stick out like a sore thumb. I've checked the stacked RGB raws as well and there is a noticeable star size difference between red and blue filters (and stars).
If anyone else has photos, it would be appreciated if you can post them to see if these issues were corrected in a newer batch, or not.
I've seen some of JJJ's pictures and starting to wonder..............if anyone else has photos, it would be appreciated if you can post them to see if these issues were corrected in a newer batch, or not. Cheers.
Nathan
There are plenty of users of thisscope. Indeed it comes under many badges like ES127 and most people are happy with their units.
I had a blue colour off axis flare in my optics and sent the optics back, that was around 1.5~2 years ago. NG quite happily replaced them no fuss no cost to me. The new optics have a little blue colour but this at least is on axis and I can focus it out easily and still have acceptable focus for imaging.
Focus on this scope can be critical that's why I went to stepper focus control.
Pinched optics...you should have returned the optics cell for adjustment. Pinched optics can happen on any scope indeed I have read of skywatcher and Tak scopes with pinched optics.
Your images were quite good ...maybe focus was the issue or if unhappy with optics talk to the supplier. I do know of more than one user who complained sold theirs then regretted this and purchased another.
edit:
I don't think James has a 127ED any more. There are lost of image'rs out there with the 127ED or derivatives who produce very very good images. Which convinces me the scope is a good'un its myself that is the limitation.
Last edited by wasyoungonce; 04-04-2013 at 11:21 AM.
I came to a similar realisation years ago: buying more and more expensive equipment didn't address the basic deficit of me being a talentless git. And yet here I am again ...
Had all sort of mount issues as I'm not sure of the named stars and was not in a position to sit there, study star charts etc to find sombrero so took my first ever pic of Saturn with this scope, seeing was about a 6, 5dmark2iso 3200 eos movrec (mac version of eos capture zoomed 5x) 4x powermate stacked in autostakkert, slight wavelet adjustment in registax then cs6 for some final sharpening, I'm fairly happy for a first effort despite tracking issues etc.
This scope has sooo much potential.
Just gotta hope it is later than sooner......preferably much later. Someone said to me recently that the trouble is that I am getting older. I told him that I have no problem with that, as long as I keep getting older. 
