10" open trust DOB is $649 https://www.amazon.com/10-inch-Hybrid-Truss-Dobsonian-Telescope/dp/B0B7SKSBPZ?ref_=ast_sto_dp
12" open trust DOB is $2000 https://www.amazon.com/Explore-Scientific-305mm-Truss-Dobsonian/dp/B01N0VDY1H?ref_=ast_sto_dp
So, the 12" DOB is 3x better than the 10" DOB?
Amazing?
On 30/09/2022 04:56, StarDust wrote:
10" open trust DOB is $649 https://www.amazon.com/10-inch-Hybrid-Truss-Dobsonian-Telescope/dp/B0B7SKSBPZ?ref_=ast_sto_dp
12" open trust DOB is $2000 https://www.amazon.com/Explore-Scientific-305mm-Truss-Dobsonian/dp/B01N0VDY1H?ref_=ast_sto_dp
So, the 12" DOB is 3x better than the 10" DOB?Fair cost of a scope scales roughly as the materials cost needed to make
Amazing?
it work reliably which is roughly as the cube of the diameter.
So 1.73x AOBE for 10" to 12"
But you are deliberately making an unfair comparison between an old
design remaindered scope and a full price Mk II.
The corresponding 10" is the 1045-00 for $1090.
https://explorescientificusa.com/collections/dobsonians
In reality prices go up steeper than simple cost of materials theory
since fewer people buy really big scopes and high volume mass production makes certain moderate sizes much more economical to manufacture.
Once you go beyond mass produced sizes there is a big step up in price.
--
Regards,
Martin Brown
On Friday, September 30, 2022 at 11:40:11 AM UTC-7, Martin Brown wrote:
On 30/09/2022 04:56, StarDust wrote:
10" open trust DOB is $649 https://www.amazon.com/10-inch-Hybrid-Truss-Dobsonian-Telescope/dp/B0B7SKSBPZ?ref_=ast_sto_dp
12" open trust DOB is $2000 https://www.amazon.com/Explore-Scientific-305mm-Truss-Dobsonian/dp/B01N0VDY1H?ref_=ast_sto_dp
So, the 12" DOB is 3x better than the 10" DOB?Fair cost of a scope scales roughly as the materials cost needed to make
Amazing?
it work reliably which is roughly as the cube of the diameter.
So 1.73x AOBE for 10" to 12"
But you are deliberately making an unfair comparison between an old
design remaindered scope and a full price Mk II.
The corresponding 10" is the 1045-00 for $1090.
https://explorescientificusa.com/collections/dobsonians
In reality prices go up steeper than simple cost of materials theory
since fewer people buy really big scopes and high volume mass production makes certain moderate sizes much more economical to manufacture.
Once you go beyond mass produced sizes there is a big step up in price.
--We're talking 2" difference in size, looks the same designed scope, except the 12"'s upper cage is different.
Regards,
Martin Brown
Don't see the 3x price justified, unless the mirror is some very high quality?
DOBs with high quality optics, like Star master etc... can sell for multiple price vs the run-of-the-mill Chines made DOBs of the same size.
We're talking 2" difference in size, looks the same designed scope, except the 12"'s upper cage is different.
Don't see the 3x price justified, unless the mirror is some very high quality?
DOBs with high quality optics, like Star master etc... can sell for multiple price vs the run-of-the-mill Chines made DOBs of the same size.
On Friday, September 30, 2022 at 9:13:14 PM UTC-7, StarDust wrote:
We're talking 2" difference in size, looks the same designed scope, except the 12"'s upper cage is different.I don't know if you realize that the 12" has 1.44 times more surface area than does the 10". I know this does not seem to correlate directly with the price difference, but still, that extra area can make a difference when observing on the ragged edge.
Don't see the 3x price justified, unless the mirror is some very high quality?
DOBs with high quality optics, like Star master etc... can sell for multiple price vs the run-of-the-mill Chines made DOBs of the same size.
On Friday, September 30, 2022 at 11:40:11 AM UTC-7, Martin Brown wrote:
On 30/09/2022 04:56, StarDust wrote:
10" open trust DOB is $649Fair cost of a scope scales roughly as the materials cost needed to make
https://www.amazon.com/10-inch-Hybrid-Truss-Dobsonian-Telescope/dp/B0B7SKSBPZ?ref_=ast_sto_dp
12" open trust DOB is $2000
https://www.amazon.com/Explore-Scientific-305mm-Truss-Dobsonian/dp/B01N0VDY1H?ref_=ast_sto_dp
So, the 12" DOB is 3x better than the 10" DOB?
Amazing?
it work reliably which is roughly as the cube of the diameter.
So 1.73x AOBE for 10" to 12"
But you are deliberately making an unfair comparison between an old
design remaindered scope and a full price Mk II.
The corresponding 10" is the 1045-00 for $1090.
https://explorescientificusa.com/collections/dobsonians
In reality prices go up steeper than simple cost of materials theory
since fewer people buy really big scopes and high volume mass production
makes certain moderate sizes much more economical to manufacture.
Once you go beyond mass produced sizes there is a big step up in price.
--
Regards,
Martin Brown
We're talking 2" difference in size, looks the same designed scope, except the 12"'s upper cage is different.
Don't see the 3x price justified, unless the mirror is some very high quality?
DOBs with high quality optics, like Star master etc... can sell for multiple price vs the run-of-the-mill Chines made DOBs of the same size.
10" open trust DOB is $649 https://www.amazon.com/10-inch-Hybrid-Truss-Dobsonian-Telescope/dp/B0B7SKSBPZ?ref_=ast_sto_dp
12" open trust DOB is $2000 https://www.amazon.com/Explore-Scientific-305mm-Truss-Dobsonian/dp/B01N0VDY1H?ref_=ast_sto_dp
So, the 12" DOB is 3x better than the 10" DOB?
Amazing?
On Thursday, September 29, 2022 at 11:56:59 PM UTC-4, StarDust wrote:
10" open trust DOB is $649 https://www.amazon.com/10-inch-Hybrid-Truss-Dobsonian-Telescope/dp/B0B7SKSBPZ?ref_=ast_sto_dp
12" open trust DOB is $2000 https://www.amazon.com/Explore-Scientific-305mm-Truss-Dobsonian/dp/B01N0VDY1H?ref_=ast_sto_dp
So, the 12" DOB is 3x better than the 10" DOB?The prices for many things have risen so much that the markets are now distorted almost beyond recognition.
Amazing?
If you are asking this question because you can't decide which to buy, then just compare each model feature by feature to see if or why there should be such a price difference.
Maybe 12-inch mirrors are expensive to obtain these days...
This is probably not the greatest time to make such purchases anyway.
On Sunday, October 2, 2022 at 9:22:07 AM UTC-7, W wrote:
On Thursday, September 29, 2022 at 11:56:59 PM UTC-4, StarDust wrote:
10" open trust DOB is $649The prices for many things have risen so much that the markets are now distorted almost beyond recognition.
https://www.amazon.com/10-inch-Hybrid-Truss-Dobsonian-Telescope/dp/B0B7SKSBPZ?ref_=ast_sto_dp
12" open trust DOB is $2000
https://www.amazon.com/Explore-Scientific-305mm-Truss-Dobsonian/dp/B01N0VDY1H?ref_=ast_sto_dp
So, the 12" DOB is 3x better than the 10" DOB?
Amazing?
If you are asking this question because you can't decide which to buy, then just compare each model feature by feature to see if or why there should be such a price difference.
Maybe 12-inch mirrors are expensive to obtain these days...
This is probably not the greatest time to make such purchases anyway.
Apertura AD12 Dobsonian 12" $1299
This is a tube type DOB, much cheaper than the $2000 open trust 12"
So, can't be the mirror? https://www.highpointscientific.com/apertura-ad12-12inch-dobsonian-telescope-ad12?utm_source=google&utm_medium=cse&utm_term=APT-AD12&utm_source=google&utm_medium=cpc&utm_campaign=18147526044&utm_content=142198545324&utm_term=
This is probably not the greatest time to make such purchases anyway.
It may soon be a great time to buy expensive high end kit from
distressed sellers who need to pay their mortgage.
On Sunday, October 2, 2022 at 9:22:07 AM UTC-7, W wrote:
On Thursday, September 29, 2022 at 11:56:59 PM UTC-4, StarDust wrote:
10" open trust DOB is $649 https://www.amazon.com/10-inch-Hybrid-Truss-Dobsonian-Telescope/dp/B0B7SKSBPZ?ref_=ast_sto_dp
12" open trust DOB is $2000 https://www.amazon.com/Explore-Scientific-305mm-Truss-Dobsonian/dp/B01N0VDY1H?ref_=ast_sto_dp
So, the 12" DOB is 3x better than the 10" DOB?The prices for many things have risen so much that the markets are now distorted almost beyond recognition.
Amazing?
If you are asking this question because you can't decide which to buy, then just compare each model feature by feature to see if or why there should be such a price difference.
Maybe 12-inch mirrors are expensive to obtain these days...
This is probably not the greatest time to make such purchases anyway.Apertura AD12 Dobsonian 12" $1299
This is a tube type DOB, much cheaper than the $2000 open trust 12"
So, can't be the mirror? https://www.highpointscientific.com/apertura-ad12-12inch-dobsonian-telescope-ad12?utm_source=google&utm_medium=cse&utm_term=APT-AD12&utm_source=google&utm_medium=cpc&utm_campaign=18147526044&utm_content=142198545324&utm_term=
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