All Forum Comments
Comment by Anvh posted on Pentax K20D cheaper, USA only? at 02/03/2009 - 15:02
Nice shots Amin you are getting much better... you are really going fast for a rookie
Comment by Anvh posted on Thought I should take another shot at wildlife at 02/03/2009 - 11:22
Amin, you already have the 55-300mm which you really like so would you use that one or the 150-500?
The reason I ask is that you probable wouldn't take both with you since they cover both 150 to 300mm. The DA* 300mm is such another lens then the zooms that it isn't a matter to chose but more a matter if you need it that desiceds if you take it with you on a hike or not.
Some say that zooms are more versatile then primes, that's true but do you need to versatility?
Sometimes the lack off zoom will let you see things you wouldn't have notice at first. It forces you to look and think more, that's what I like about primes.
I know you like to walk so just take every lens with you one time and then compare the photos you took to see whit what lens you took the most interesting photos.
believe me they will all look differend
The reason I ask is that you probable wouldn't take both with you since they cover both 150 to 300mm. The DA* 300mm is such another lens then the zooms that it isn't a matter to chose but more a matter if you need it that desiceds if you take it with you on a hike or not.
Some say that zooms are more versatile then primes, that's true but do you need to versatility?
Sometimes the lack off zoom will let you see things you wouldn't have notice at first. It forces you to look and think more, that's what I like about primes.
I know you like to walk so just take every lens with you one time and then compare the photos you took to see whit what lens you took the most interesting photos.
believe me they will all look differend
Comment by Anvh posted on DA*300 and Sigma 150-500 at 02/03/2009 - 11:15
mille19 wrote:
At the risk of repeating myself, it depends what size you want to print at.
You can crop to 1800x1200 pixels if you only need a 6"x4" print, however if you want a 10"x8" print you need 3000 x 2400 so you can't crop much.
That isn't 100% right, you can smoothing the edges a bit of a sharp image without much lost so that the quality would be better when printing large. Also the viewing distance increase with large prints so you can get away with a bit less quality as well.At the risk of repeating myself, it depends what size you want to print at.
You can crop to 1800x1200 pixels if you only need a 6"x4" print, however if you want a 10"x8" print you need 3000 x 2400 so you can't crop much.
Comment by Anvh posted on DA*300 and Sigma 150-500 at 02/03/2009 - 11:00
Around 55-70mm (80-105mm on 35mm format) is concidered to be the best range for Portrait.
Most off the time it's the farther away you can be the better because the proportions off the nose and ears would be better.
Some pro's shoot even with long tele lenses and use a walkie talkie to comunicate with the model
Think about the amount off room you have when doing a portrait and what you want to photograph with macro off course.
50mm for flowers and other still objects and 100mm+ for the living stuff, that's on digital btw.
I myself use the DFA 100mm, very light thing and it's on the camera 90% of the time. The only thing that I miss on it is the focus limiter but the quickshift makes up to that in my opinion.
The photos I took where taken from 6 to 8 meters away to give you an idea from the distance.
Have looked on the Sigma site for the DF and they told me this
Since I only use the AF button for autofocus, I most of the time press the button so that the camera moves the lens to the right focus range and then focus manual again, very handy I must say
Most off the time it's the farther away you can be the better because the proportions off the nose and ears would be better.
Some pro's shoot even with long tele lenses and use a walkie talkie to comunicate with the model
Think about the amount off room you have when doing a portrait and what you want to photograph with macro off course.
50mm for flowers and other still objects and 100mm+ for the living stuff, that's on digital btw.
I myself use the DFA 100mm, very light thing and it's on the camera 90% of the time. The only thing that I miss on it is the focus limiter but the quickshift makes up to that in my opinion.
The photos I took where taken from 6 to 8 meters away to give you an idea from the distance.
ewen_r wrote:
5) The Pentax 100mm and Tamron 90mm both have aperture ring (which I think is virtually essential), but I can't determine if the Sigma 105mm does. Also the sigma has a DF (Dual Focus) system.. what is that? Is it the same as quickshift?
They alll have an aperture ring so far as I know.5) The Pentax 100mm and Tamron 90mm both have aperture ring (which I think is virtually essential), but I can't determine if the Sigma 105mm does. Also the sigma has a DF (Dual Focus) system.. what is that? Is it the same as quickshift?
Have looked on the Sigma site for the DF and they told me this
Quote:
DF (Dual Focus) System
The DF (Dual Focus) system disengages the linkage between the internal focusing mechanism and outer focusing ring when the focusing ring is moved to the AF position. This system provides easy and precise handling of the lens, since the focusing ring does not rotate during autofocusing. The wide focusing ring also enables easy and accurate manual focusing.
Only the Pentax has something like quick-shift I believe.DF (Dual Focus) System
The DF (Dual Focus) system disengages the linkage between the internal focusing mechanism and outer focusing ring when the focusing ring is moved to the AF position. This system provides easy and precise handling of the lens, since the focusing ring does not rotate during autofocusing. The wide focusing ring also enables easy and accurate manual focusing.
Since I only use the AF button for autofocus, I most of the time press the button so that the camera moves the lens to the right focus range and then focus manual again, very handy I must say
Comment by Anvh posted on macro and portrait all in one at 02/03/2009 - 10:49
This reminds me off the Samsung Hybrid Camera System, any chance Pentax is going along with them maybe
link
link
Comment by Anvh posted on New Pentax "bridge" (Micro APS-C) leak? at 01/03/2009 - 22:55
and another review digitalcamerareview.com linky
Still need to read it so you know as much as me now
Still need to read it so you know as much as me now
All macro's are soft wide open I believe since you need a small arputure or else the dof is simply to small and since it is a specialize lens it's design for that right?
Something against the Tamron 90, the D-FA has quickshift and you know that's very handy!
To answer your fullframe question, I don't believe there is a macro that can't do that. They also have all a diafragma ring so far as i know.
Something against the Tamron 90, the D-FA has quickshift and you know that's very handy!
To answer your fullframe question, I don't believe there is a macro that can't do that. They also have all a diafragma ring so far as i know.
Comment by Anvh posted on macro and portrait all in one at 01/03/2009 - 18:34
These where done with the D-FA 100mm f/2.8 so you tell me link
100mm might be a bit too long for some portrait work if you don't have the room, 70mm would be a more sensable option.
Sharpeness can always be made less so don't worry about that, I even sharpend my photos to get some detials in the hair and combine it with a blurr to even out the skin just a bit.
100mm might be a bit too long for some portrait work if you don't have the room, 70mm would be a more sensable option.
Sharpeness can always be made less so don't worry about that, I even sharpend my photos to get some detials in the hair and combine it with a blurr to even out the skin just a bit.
Comment by Anvh posted on macro and portrait all in one at 01/03/2009 - 16:30
Okay an update.
camera > photoshop cs4
PEF > uncompressed image tiff = 28,7 MB
DNG > uncompressed image tiff = 28.7 MB
so no difference here, can someone explain this?
if you look at the ones with compressed tiff you see an difference but also with computer compressed DNG.
well i zip and rar (best compresion) them for you.
PEF (camera) = 8,15 MB
ZIP = 8,09 MB
RAR = 8,09 MB
DNG (camera) = 16,1 MB
ZIP = 12,2 MB
RAR = 10,1 MB
uncompressed image TIFF (PEF camera) = 28,7 MB
ZIP = 11,9 MB
RAR = 8,86 MB
uncompressed image tiff (DNG camera) = 28,7 MB
ZIP = 12,1 MB
RAR = 8,89 MB
TIFF with zip Image compresion (pef camera) = 8,71 MB
ZIP = 8,70 MB
RAR = 8,71 MB
TIFF with zip Image compresion (DNG camera) = 8,86 MB
ZIP = 8,84 MB
RAR = 8,86 MB
DNG by computer (pef camera) = 6,94 MB
ZIP = 6,75 MB
RAR = 6,72 MB
DNG by computer (DNG camera) = 7,14 MB
ZIP = 6,95 MB
RAR = 6,92 MB
camera > photoshop cs4
PEF > uncompressed image tiff = 28,7 MB
DNG > uncompressed image tiff = 28.7 MB
so no difference here, can someone explain this?
if you look at the ones with compressed tiff you see an difference but also with computer compressed DNG.
well i zip and rar (best compresion) them for you.
PEF (camera) = 8,15 MB
ZIP = 8,09 MB
RAR = 8,09 MB
DNG (camera) = 16,1 MB
ZIP = 12,2 MB
RAR = 10,1 MB
uncompressed image TIFF (PEF camera) = 28,7 MB
ZIP = 11,9 MB
RAR = 8,86 MB
uncompressed image tiff (DNG camera) = 28,7 MB
ZIP = 12,1 MB
RAR = 8,89 MB
TIFF with zip Image compresion (pef camera) = 8,71 MB
ZIP = 8,70 MB
RAR = 8,71 MB
TIFF with zip Image compresion (DNG camera) = 8,86 MB
ZIP = 8,84 MB
RAR = 8,86 MB
DNG by computer (pef camera) = 6,94 MB
ZIP = 6,75 MB
RAR = 6,72 MB
DNG by computer (DNG camera) = 7,14 MB
ZIP = 6,95 MB
RAR = 6,92 MB
Pentax K20D going down $200, price is now $799.95.
Does this mean we can also expect a price drop here in Europe?