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...is a joy forever!
Comment by Pentaxke posted on A thing of beauty... at 15/03/2008 - 20:01
I think a converter would only be usefull if you use the Bigma on a tripod... I wouldn't recommend it, though.
Comment by Pentaxke posted on I'm in love at 14/03/2008 - 18:52
Txs Steve!
Comment by Pentaxke posted on Pentax *ist D DSLR Body - original boxed package SOLD SOLD.. at 14/03/2008 - 18:45
It indeed is 0,25x at its' clostest setting: it's the same magnification ratio on 70 (+macro setting) as it is on 210 (1,2 m closest distance), but you do well to use it at the 70 setting then, as sharpness declines rapidly once you go under 2m distance (@210.)
I had it back in my film days, and I didn't think much of the lens. I have it now again and use it on my D and it's quite sharp, provided you avoid f/4 @ 210mm...
I never understood why Pentax never updated this lens to an AF version... :
I had it back in my film days, and I didn't think much of the lens. I have it now again and use it on my D and it's quite sharp, provided you avoid f/4 @ 210mm...
I never understood why Pentax never updated this lens to an AF version... :
Comment by Pentaxke posted on Info on Pentax-A 70-210mm zoom please at 14/03/2008 - 19:03
I have an ist D with two stuck pixels, but as I almost always use RAW, they hardly show up...
It's also quite easily corrected.
It's also quite easily corrected.
Comment by Pentaxke posted on Does your camera have any stuck pixels? at 14/03/2008 - 18:50
I got a rempy as to why it's impossible to them:
Quote:
In principle, screens with a microprism circle or an angled prism are no
more difficult to make than any other design... assuming you are designing
from a blank piece of paper. For us though, being a much smaller volume
producer than the OEMs, we have to 'pick our battles' as they say and we
tried to pick the design that would suit the greatest number of customers.
I do realize the advantages to a 45 degree prism, but it also has its
disadvantages as well. Because of the way the human eyes and brain work, it
is more difficult to align the two prism halves if the target line crosses
at an angle. So while the angled prism will work in more situations, it
will be somewhat less precise in all of them. As I said, both are good
designs in the correct application - we just don't have the ability to
produce angled prisms within the constraints of the material, equipment, and
tooling we have available currently.
Seems plausible to me. Anyway, like some of you said, she is very helpful in her replies...In principle, screens with a microprism circle or an angled prism are no
more difficult to make than any other design... assuming you are designing
from a blank piece of paper. For us though, being a much smaller volume
producer than the OEMs, we have to 'pick our battles' as they say and we
tried to pick the design that would suit the greatest number of customers.
I do realize the advantages to a 45 degree prism, but it also has its
disadvantages as well. Because of the way the human eyes and brain work, it
is more difficult to align the two prism halves if the target line crosses
at an angle. So while the angled prism will work in more situations, it
will be somewhat less precise in all of them. As I said, both are good
designs in the correct application - we just don't have the ability to
produce angled prisms within the constraints of the material, equipment, and
tooling we have available currently.
Comment by Pentaxke posted on Installing Katz-eye screen. at 16/03/2008 - 22:24
Ok, I plunged. I took the full option: optibrite and rule of thirds gridlines. T-w-o-h-u-n-d-e-r-e-d-w-o-w! d$ll$rs is been accounted for... Shure hope it's worth the effort.
On a side note: I mailed Rachael of Katz Eye with the question if they could make a custom screen with only microprism circle or alternatively with a 45 degree micro prism. Neither of two requests could be satisfied:
Och well...
On a side note: I mailed Rachael of Katz Eye with the question if they could make a custom screen with only microprism circle or alternatively with a 45 degree micro prism. Neither of two requests could be satisfied:
Quote:
(...) Both the microprism circle and diagonal prism are good designs which I am sure would be welcomed by some of our customers. However, after studying the matter, we have reached the conclusion that we just don't have sufficient resources to pursue either of these new designs at this time. I will keep your email on file and if there are any developments regarding these designs, I will be sure to let you know. Thanks again for your interest and I am sorry we cannot meet your current needs.
Now, here is sth I don't understand... That microprism only screens would be an alltogether different matter, I can understand, but how difficult would it be to give the plastic a 45 degree before cutting it into a screen? I never understood in the first place why every brand is insisting on a horizontal split prism, since IMHO with a 45 degree split prism one can use both horizontal and vertical lines to focus on...(...) Both the microprism circle and diagonal prism are good designs which I am sure would be welcomed by some of our customers. However, after studying the matter, we have reached the conclusion that we just don't have sufficient resources to pursue either of these new designs at this time. I will keep your email on file and if there are any developments regarding these designs, I will be sure to let you know. Thanks again for your interest and I am sorry we cannot meet your current needs.
Och well...
Comment by Pentaxke posted on Installing Katz-eye screen. at 16/03/2008 - 16:43
Txs Martin and Pete! Very helpfull information...
I'm almost taking the plunge. Only question left: with or without optibright?
I'm almost taking the plunge. Only question left: with or without optibright?
Comment by Pentaxke posted on Installing Katz-eye screen. at 15/03/2008 - 20:04
Quote:
Hi all,
Today my Katz Eye screen arrived by UPS. After careful reading the very clear instructions (PDF with very good example pictures) I took the plunge.
And with no coffee i tried to install the screen. I succeeded in a second try after i noticed that the light seals around the clamp of the screen had left some debris on that beautiful clean focusing screen. So after carefully removing it again, and gently blowing the debris out, i tried again. Mission succeeded and i am very happy. I ordered the plain split prism screen with no optibrite treatment and boy........., what a difference it makes. AF and of course MF are so easy now.
I have never seen such a bright VF. And no problems with the light meter.
So......chapeau for Katz Eye Optics.
Best regards,
Martin
Hi Martin,Hi all,
Today my Katz Eye screen arrived by UPS. After careful reading the very clear instructions (PDF with very good example pictures) I took the plunge.
And with no coffee i tried to install the screen. I succeeded in a second try after i noticed that the light seals around the clamp of the screen had left some debris on that beautiful clean focusing screen. So after carefully removing it again, and gently blowing the debris out, i tried again. Mission succeeded and i am very happy. I ordered the plain split prism screen with no optibrite treatment and boy........., what a difference it makes. AF and of course MF are so easy now.
I have never seen such a bright VF. And no problems with the light meter.
So......chapeau for Katz Eye Optics.
Best regards,
Martin
I'm new to this forum and looking for the Katz eye. A search revealed this topic, and if you don't mind, I have some questions:
- you said you didn't order the optibrite treatment but nevertheless the VF is brighter?
- How about metering problems?
- you say AF is improved too. I don't quite get that
You see lot's of questions...
Problem is: the Katzeyes or horribly expensive. That's alright with me, but the problem is you just can't find any usefull information 'bout them, nor find a shop near you where you can try them out...
Comment by Pentaxke posted on Installing Katz-eye screen. at 14/03/2008 - 19:19
Comment by Pentaxke posted on A few to start with at 16/03/2008 - 22:29
