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Re: wide angle conversion lenses for DSLRs

 
 
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      03-07-2010, 07:07 AM
On Sat, 06 Mar 2010 20:37:48 -0800, SMS <(E-Mail Removed)> wrote:

>Paul Furman wrote:
>> http://www.komamura.co.jp/e/CVL/index.html
>> There are some articles announcing this upcoming line of Horseman wide
>> angle and macro conversion lenses for DSLRs from fall 2009 but I don't
>> see where they can be bought. Horseman is known for making some rather
>> fancy large format gear, so one would expect these lenses are not total
>> crap although the $60-$120 price doesn't suggest the flawless imaging
>> they describe. These are for screwing on the front of a kit lens.

>
>They might be fun to play with, but I expect that they won't be any
>better than the highest-quality conversion lenses for P&S cameras, which
>as you know, give pretty mediocre results.


Yes. Like these taken with an $80, 0.25x, fish-eye adapter on a P&S camera.

http://farm3.static.flickr.com/2733/...08833ce3_o.jpg

http://farm5.static.flickr.com/4071/...e325af04_o.jpg

Used as fish-eye at 9mm EFL and 18mm EFL ultra-wide by using the P&S
camera's super-zoom lens to choose the focal-length wanted. Just as sharp,
flare-free, and CA free right up to the camera's own widest-angle where it
is then no longer needed. A continuous zoom range with one pocketable
camera and two pocketable adapter lenses, from 9mm - 736mm f/2.4-3.5, all
for under $500. Without having to expose the sensor to dust and condensing
or freezing humidity when changing them.

When compared against the images produced with a fixed-focal-length $2000
Nikkor fish-eye for DSLRs, this 0.25x adapter wins. That $2000 is just for
a single focal-length too mind you.

What were you were saying, SMS? You uselessly psychotic
pretend-photographer role-playing DSLR-TROLL.


Now remember you idiotic DSLR-Trolls, try to not misconstrue JPG artifacts
for noise or over-sharpening again, as you idiots always do.


So funny. Now that you DSLR-Trolls have taken the live-view benefits from
P&S cameras, reticulated view-finders from P&S cameras, video-modes from
P&S cameras, etc., etc., now you're going to start discovering the benefits
of leaving your lens on your camera and using front-end adapters too.
Benefits like no longer losing 2EV steps aperture when using tele-extenders
nor getting dust all over your sensor with every lens change.
Unfortunately, you'll be adding on so much more weight to your kit by using
front-end adapters large enough to retain your lens' own widest apertures
that you're back at square-one again.

OMG! You're slowly turning your DSLRs into P&S cameras! Without the main
benefits. LOL! Unfortunately, unlike pros that use P&S cameras in full
manual mode most often, you'll still be using your DSLRs in idiots'
auto-everything mode. Making your DSLRs into grossly cumbersome P&S
cameras. Unfortunately you'll also never get out from under all the
drawbacks of that image-shaking slapping mirror and image-distorting,
slow-flash-sync, crippling focal-plane shutter and all the front and back
focusing issues of your fast but wholly inaccurate phase-contrast focusing.

This is getting more and more funny. The best comedy show on earth are the
posts by DSLR proponents.
 
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      03-07-2010, 09:56 AM
On Sun, 7 Mar 2010 02:24:30 -0800 (PST), RichA <(E-Mail Removed)>
wrote:

>On Mar 7, 3:07*am, Better Info <bi...@address.info> wrote:
>> On Sat, 06 Mar 2010 20:37:48 -0800, SMS <scharf.ste...@geemail.com> wrote:
>> >Paul Furman wrote:
>> >>http://www.komamura.co.jp/e/CVL/index.html
>> >> There are some articles announcing this upcoming line of Horseman wide
>> >> angle and macro conversion lenses for DSLRs from fall 2009 but I don't
>> >> see where they can be bought. Horseman is known for making some rather
>> >> fancy large format gear, so one would expect these lenses are not total
>> >> crap although the $60-$120 price doesn't suggest the flawless imaging
>> >> they describe. These are for screwing on the front of a kit lens.

>>
>> >They might be fun to play with, but I expect that they won't be any
>> >better than the highest-quality conversion lenses for P&S cameras, which
>> >as you know, give pretty mediocre results.

>>
>> Yes. Like these taken with an $80, 0.25x, fish-eye adapter on a P&S camera.
>>
>> http://farm3.static.flickr.com/2733/...08833ce3_o.jpg
>>
>> http://farm5.static.flickr.com/4071/...e325af04_o.jpg
>>
>> Used as fish-eye at 9mm EFL and 18mm EFL ultra-wide by using the P&S
>> camera's super-zoom lens to choose the focal-length wanted. Just as sharp,

>
>In all its 800x600 pixel glory. Wait! I can do the same with a 1.2
>megapixel camera from 1999.


No you can't. You can't even produce these test-shots as good as this from
your piece of **** DSLR. Prove it! Put up or shut up!

>
>> flare-free, and CA free right up to the camera's own widest-angle where it
>> is then no longer needed. A continuous zoom range with one pocketable
>> camera and two pocketable adapter lenses, from 9mm - 736mm f/2.4-3.5, all
>> for under $500.

>
>Can we go back to the days when lenses were represented by their
>actual focal lengths and not some equivalency rubbish?


Just as soon as you get rid of your silly and stupid-sounding DSLR's "crop
factor" (LOL) definition.

 
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Charles
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      03-07-2010, 10:43 PM
Plonk!


 
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Charles
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      03-07-2010, 10:44 PM
Plonk!


 
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John A.
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      03-09-2010, 07:10 AM
On Sun, 7 Mar 2010 18:43:26 -0500, "Charles"
<(E-Mail Removed)> wrote:

>Plonk!


I used to be pretty good at whack-a-mole.
 
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