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But the Canon Pro9000 is a discontinued model actually, it's replaced by the Mark II last year.
Comment by Anvh posted on Printer for colour / b&w up to A3 at 06/07/2010 - 17:51
The same is true for most platform, it's only with the gaming consoles it's the same across the range.
The iPhone 4 is also very different with the hardware and capabilities then the previous iPhones and only the first two iPhones where quite the same spec wise the 3Gs had more RAM and another processor.
The iPad runs the same operation system and is also a different devices and you've the iPod Touch which has 3 generations with different specs as well.
But the inputs are roughly the same, some don't have the accelerometer but that's about it but developers still have to deal with different screen sizes, processors and ram.
The Android market is indeed far more fragmented and it only get more fragmented when Android Gingerbread (3.0) comes out at the end of this year.
For developers they have a choice to include certain features, at least all androids have a touch screen I believe and a physical or on-screen keyboard and that's good enough for most apps. I don't have an Apple product so you need to say if they use the keys they have or if most apps also only use the screen.
As for customers that have too much to chose is something that cuts from both sides. If you do a lot of texting on your phone and want a full keyboard then the iPhone is not an option or if you want 4G or you want a resistive screen instead off captive for example.
The ability to chose is not something negative in my eyes and I believe you better have too much chose than too little.
The iPhone 4 is also very different with the hardware and capabilities then the previous iPhones and only the first two iPhones where quite the same spec wise the 3Gs had more RAM and another processor.
The iPad runs the same operation system and is also a different devices and you've the iPod Touch which has 3 generations with different specs as well.
But the inputs are roughly the same, some don't have the accelerometer but that's about it but developers still have to deal with different screen sizes, processors and ram.
The Android market is indeed far more fragmented and it only get more fragmented when Android Gingerbread (3.0) comes out at the end of this year.
For developers they have a choice to include certain features, at least all androids have a touch screen I believe and a physical or on-screen keyboard and that's good enough for most apps. I don't have an Apple product so you need to say if they use the keys they have or if most apps also only use the screen.
As for customers that have too much to chose is something that cuts from both sides. If you do a lot of texting on your phone and want a full keyboard then the iPhone is not an option or if you want 4G or you want a resistive screen instead off captive for example.
The ability to chose is not something negative in my eyes and I believe you better have too much chose than too little.
Comment by Anvh posted on iPhone or Google Nexus? at 06/07/2010 - 17:45
Thank you Steve, that could be it.
Comment by Anvh posted on New Tokina lens. at 06/07/2010 - 16:50
Matt the only possible thing I can think of is that with larger size lenses (and therefore larger filter thread size) is that the filter is place further away from the lens then smaller lenses and more surface of the filter is inside the AOV.
Maybe you mean the same thing but explain it differently?
Not the right scale but this is what I mean.
A filter place at 100 feet can be twice as small as one placed at 200 feet.
ps. the image is about FOV but it's the same principle.
Solution is you use 4stops for the 100feet and a 2stops for the 200feet since it will only see 50% of the 100feet the difference off the transition is 2 stops so they act the same.
Maybe you mean the same thing but explain it differently?
Not the right scale but this is what I mean.
A filter place at 100 feet can be twice as small as one placed at 200 feet.
ps. the image is about FOV but it's the same principle.
Solution is you use 4stops for the 100feet and a 2stops for the 200feet since it will only see 50% of the 100feet the difference off the transition is 2 stops so they act the same.
Comment by Anvh posted on Grad filter sizes at 06/07/2010 - 16:48
Indeed, I rather have the 11-16 also btw, pentax and tokina already has the DA*16-50 so it's a bit of a strange lens to bring out.
Comment by Anvh posted on New Tokina lens. at 06/07/2010 - 15:54
MattMatic wrote:
It's the angle of view that becomes the issue. As you take a narrower section of the ND grad on a Z-Pro size filter the range of grad is less.
Consider: a 77mm filter with 90 degree AoV will take a large chunk of the 100mm. You'll get a lovely smooth gradient using a large part of the filter.
Now, a 49mm filter with a couple of degrees AoV will take a considerably smaller chunk of the filter - and you'll get less 'grad' and more 'ND'.
Ah yes the AOV but not the filter thread size right?It's the angle of view that becomes the issue. As you take a narrower section of the ND grad on a Z-Pro size filter the range of grad is less.
Consider: a 77mm filter with 90 degree AoV will take a large chunk of the 100mm. You'll get a lovely smooth gradient using a large part of the filter.
Now, a 49mm filter with a couple of degrees AoV will take a considerably smaller chunk of the filter - and you'll get less 'grad' and more 'ND'.
I mean would the filter act differently with the DA15mm with his 49mm thread instead of the DA*16-50 at 16mm with 77mm thread?
MrCynical wrote:
If using a 100mm grad on a 52mm-element lens, I will not be able to do that without having the dark area also covering the bottom, since on grad filters the top half of the filter (ie 50mm of it on a 100mm filter) is dark to varying levels - correct?
The size of the filter is not important but how hard or soft the transition is from transparant to dark.If using a 100mm grad on a 52mm-element lens, I will not be able to do that without having the dark area also covering the bottom, since on grad filters the top half of the filter (ie 50mm of it on a 100mm filter) is dark to varying levels - correct?
A razor sharp transition so directly from transparant to dark will be the same on all size of filters.
This from lee hard vs soft link that makes it clear with two pictures.
Comment by Anvh posted on Grad filter sizes at 06/07/2010 - 15:44
As some of you know Tokina share some lenses with Pentax so a new lens their might mean a new lens for Pentax
The new lens is the 16-28mm f/2,8
Very limited range so I wonder how good it will sell, the price is €1125
here is the translated site link
ps it even has weather-sealing and SDM
The new lens is the 16-28mm f/2,8
Very limited range so I wonder how good it will sell, the price is €1125
here is the translated site link
ps it even has weather-sealing and SDM
Comment by Anvh posted on New Tokina lens. at 06/07/2010 - 13:47
Matt I can't really follow you?
What does size have to do with the transition from the transparant to the dark part, if you want a real line instead of a controllable ND you just take one with a hard-edge transition right?
It actually goes from transparent to very dark and slowly back to transparent.
You use those filters when the sun is at the horizon.
What does size have to do with the transition from the transparant to the dark part, if you want a real line instead of a controllable ND you just take one with a hard-edge transition right?
Pentaxophile wrote:
Do reverse ND grads get darker toward the bottom rather than the top? Lol!
I thought so too but no it's something different.Do reverse ND grads get darker toward the bottom rather than the top? Lol!
It actually goes from transparent to very dark and slowly back to transparent.
You use those filters when the sun is at the horizon.
Comment by Anvh posted on Grad filter sizes at 06/07/2010 - 13:39
Unlocker wrote:
let alone developing for it!
Why so?let alone developing for it!
I mean Android 2.1 apps also run on 2.2 right, ain't sure if 1.x apps can run on 2.x but haven't heard off any problems their so how do you come to that conclusion?
Comment by Anvh posted on iPhone or Google Nexus? at 06/07/2010 - 13:23
flossie wrote:
This may be true. But the fact remains that SDM Pentax lenses fail in a manner and numbers than non-SDM Pentax lenses do not, and when they do, you are left with a £1,000 manual lens, because they block you from using the "backup" Screwdrive that exists on the lens anyway!
Actually I find it very good they do that.This may be true. But the fact remains that SDM Pentax lenses fail in a manner and numbers than non-SDM Pentax lenses do not, and when they do, you are left with a £1,000 manual lens, because they block you from using the "backup" Screwdrive that exists on the lens anyway!
The AF does not stop working for nothing and no one for sure can tell it's just the SDM motor. What if a gear is misalign (which Pentax said cause for a lot of the problems with the DA*16-50) and you start using the camera AF motor, how long will that work till it either wreck your lens further or burn out the motor inside the camera?
flossie wrote:
So its not a uniquely-Pentax issue, all supersonic motors are intrinsically more likely to fail, and not with the classic "Bathtub" curve, either, but much more likely to fail mid-life than non-SS lenses.
Good point, I mean how much would the ultrasonic motor Pentax use differ from the rest, they probably buy them at the same factory So its not a uniquely-Pentax issue, all supersonic motors are intrinsically more likely to fail, and not with the classic "Bathtub" curve, either, but much more likely to fail mid-life than non-SS lenses.
Comment by Anvh posted on SDM failures horror stories at 06/07/2010 - 13:01
