All Forum Comments
Comment by JAK posted on Lens cleaning (internal) at 02/02/2012 - 21:02
Sorry, no idea. Say....
Comment by JAK posted on Why isn't it yellow? at 01/02/2012 - 12:33
I'd say it is an amaryllis.
John
John
Comment by JAK posted on Why isn't it yellow? at 01/02/2012 - 11:57
Well if it helps the shop I'm thinking of is Clives Cameras, 158 Victoria Road, Scarborough. So not too far if you think it might be worth it. (You can usually park more or less outside but make sure you get a parking disc to save getting a ticket!)
He concentrates on old film camera lenses - he'll either have a dabble himself or know someone! He's sorted out some mount issues with a similar Tokina lens (80-200 f2.8 ) for me but not a full blown clean up job like that needs.
The shop is an Aladdin's cave so well worth a visit. I can't think of a comparable shop in York but that isn't to say there isn't one!
If it helps I could pop in and ask him what he thinks first to save you a wasted journey, unless you get somewhere with your local dealer.
John
He concentrates on old film camera lenses - he'll either have a dabble himself or know someone! He's sorted out some mount issues with a similar Tokina lens (80-200 f2.8 ) for me but not a full blown clean up job like that needs.
The shop is an Aladdin's cave so well worth a visit. I can't think of a comparable shop in York but that isn't to say there isn't one!
If it helps I could pop in and ask him what he thinks first to save you a wasted journey, unless you get somewhere with your local dealer.
John
Comment by JAK posted on Lens cleaning (internal) at 31/01/2012 - 23:37
It might be worth saying here which Sigma lens it is and get an opinion on whether it is worth getting it cleaned/repaired.
There are some smaller local photography shops (we have one here in Scarborough) who might be prepared to give it a go. The chap here enjoys tackling such things! It could be you've nothing to loose.
John
There are some smaller local photography shops (we have one here in Scarborough) who might be prepared to give it a go. The chap here enjoys tackling such things! It could be you've nothing to loose.
John
Comment by JAK posted on Lens cleaning (internal) at 31/01/2012 - 21:12
I see that the shot was taken at 1/200 at f2.4
f2.4 isn't really giving enough depth of field for a shot like this making only the nearest part of one of the petals in focus! You could perhaps have afforded to use a smaller f stop and a slower shutter speed and focus on the stamen.
But back to your question: Why isn't it yellow? Presumably it isn't a yellow variety - it's definitely pink and white with perhaps a hint of yellow towards the centre! I presume the flower doesn't look yellow and the photograph made it totally different? Surely not?!
I see the light source is from the window behind and looks to be causing a dulling of the subject matter (underexposing it slightly.) Try again without having the window in the shot. If it has to be taken where it is, override the exposure by a stop or two until it looks right - but that would make the window brighter still.
One option to get it all exposed better would be to use the camera's HDR setting so that it takes several pictures at different exposures and combines them to avoid burnt out highlights and deep shadows.
Perhaps worth an experiment?
John
f2.4 isn't really giving enough depth of field for a shot like this making only the nearest part of one of the petals in focus! You could perhaps have afforded to use a smaller f stop and a slower shutter speed and focus on the stamen.
But back to your question: Why isn't it yellow? Presumably it isn't a yellow variety - it's definitely pink and white with perhaps a hint of yellow towards the centre! I presume the flower doesn't look yellow and the photograph made it totally different? Surely not?!
I see the light source is from the window behind and looks to be causing a dulling of the subject matter (underexposing it slightly.) Try again without having the window in the shot. If it has to be taken where it is, override the exposure by a stop or two until it looks right - but that would make the window brighter still.
One option to get it all exposed better would be to use the camera's HDR setting so that it takes several pictures at different exposures and combines them to avoid burnt out highlights and deep shadows.
Perhaps worth an experiment?
John
Comment by JAK posted on Why isn't it yellow? at 31/01/2012 - 12:52
If its just in the Windows Explorer display then I can confirm that the RAW files do have a black band top and bottom (horizontal shots) when compared to the jpegs which don't. But these bands do not appear when loading the images into Elements / Lightroom / Pentax utility etc.
Have you tried unconverted jpegs? ie set to RAW+ to get both?
John
Have you tried unconverted jpegs? ie set to RAW+ to get both?
John
Comment by JAK posted on Smear or Blooming at 31/01/2012 - 00:23
Hi Geoff and welcome.
I cannot immediately answer your question as I do not quite understand what you are seeing. But I'll try and help you start to get the bottom of it.
What you get with the K-5 shouldn't be that different to what you get with your GX-10 in that respect. Apart from better of course!
Does the banding issue only occur with RAW files or jpegs as well?
When you display your K-5 pics, do you see this banding on all images? Does it show up on both on the Camera display and after transferring images to a PC?
If it's just the RAW files (re: you said photographic negative) you may need to update the RAW converter. If however it is on both RAW and jpeg it sounds as if the camera sensor maybe faulty as you suggest. If so are you able to take it back and try another one?
It may help, if you are able to upload a picture showing the problem and linking to it here.
If you can answer some of these queries I'm sure we'll start to narrow it down!
John
I cannot immediately answer your question as I do not quite understand what you are seeing. But I'll try and help you start to get the bottom of it.
What you get with the K-5 shouldn't be that different to what you get with your GX-10 in that respect. Apart from better of course!
Does the banding issue only occur with RAW files or jpegs as well?
When you display your K-5 pics, do you see this banding on all images? Does it show up on both on the Camera display and after transferring images to a PC?
If it's just the RAW files (re: you said photographic negative) you may need to update the RAW converter. If however it is on both RAW and jpeg it sounds as if the camera sensor maybe faulty as you suggest. If so are you able to take it back and try another one?
It may help, if you are able to upload a picture showing the problem and linking to it here.
If you can answer some of these queries I'm sure we'll start to narrow it down!
John
Comment by JAK posted on Smear or Blooming at 30/01/2012 - 23:40
Their photo listing categories are:
The 'Used' option is:-
John
Quote:
New
New other (see details)
Manufacturer refurbished
Seller refurbished
Used
For parts or not working
Very good condition isn't one of them!New
New other (see details)
Manufacturer refurbished
Seller refurbished
Used
For parts or not working
The 'Used' option is:-
Quote:
An item that has been previously used. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or an item that has been returned to the seller after a period of use. See the seller’s listing for full details and description of any imperfections.
and the 'For parts or not working' option is:-An item that has been previously used. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or an item that has been returned to the seller after a period of use. See the seller’s listing for full details and description of any imperfections.
Quote:
An item that does not function as intended or is not fully operational. This includes items that are defective in ways that render them difficult to use, items that require service or repair, or items missing essential components. See the seller’s listing for full details.
So that lens looks to have been wrongly describedAn item that does not function as intended or is not fully operational. This includes items that are defective in ways that render them difficult to use, items that require service or repair, or items missing essential components. See the seller’s listing for full details.
John
Comment by JAK posted on How much dust is too much? at 30/01/2012 - 18:50
If you happen to be in there it would be kind of you to ask, but don't go out of your way! Sounds like I'll have to pay a visit when I'm up that way to have a poke around..
John