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Forum: Pentax SLR Lens Discussion 02-05-2011, 11:52 PM  
Macro + DOF experiment... surprising results!
Posted By Yaro
Replies: 3
Views: 2,016
Tamron at F11 this time using AV mode... not M
Full:


Crop


And a different, but better crop due to slightly different lighting:
Forum: Pentax SLR Lens Discussion 02-05-2011, 11:46 PM  
Macro + DOF experiment... surprising results!
Posted By Yaro
Replies: 3
Views: 2,016
haha, whoops! been playing with old manuals too much. Retest incoming :)
Forum: Pentax SLR Lens Discussion 02-05-2011, 11:18 PM  
Macro + DOF experiment... surprising results!
Posted By Yaro
Replies: 3
Views: 2,016
Hi everyone, so today I tried to compare 2 macro set-ups of mine.

1) 100mm f4 bellows takumar with around 100mm extension tubes

vs

2) tamron 90mm 1:2.8 di sp macro.


Here are the two images taken of the same subject, with both lenses set at f/11:

Tamron:
full image:

100% crop:




Bellows Takumar:
full image:

100% crop:


So the surprising results are that the 4 element bellows takumar annihilates the di sp macro! It has more magnification with the tubes, while at the same time better quality of image and way larger DOF!




If someone could explain to me why the DOF varies so much, I would be appreciate it as I am a bit surprised by this.



Cheers,

Yaro
Forum: Post Your Photos! 12-28-2010, 05:30 AM  
Macro Celebration
Posted By Yaro
Replies: 0
Views: 1,059
My first post in a while, but I thought these worked out pretty well:







Forum: Photographic Technique 10-19-2010, 11:41 PM  
*New* web site
Posted By Yaro
Replies: 1
Views: 2,491
Hi everyone.

Just recently finished personalizing a new web page. After hand designing my previous page I decided to instead go with an edited version of something already out there.

Please check out
yaro-photo.com

Any design/content comments,ideas and criticism more than welcome!


Thanks

Yaro
Forum: Post Your Photos! 10-03-2010, 04:41 AM  
Macro flowers
Posted By Yaro
Replies: 6
Views: 1,818
Number 3 is my favorite. Nice colors and composition, not too cluttered.
Forum: Post Your Photos! 10-03-2010, 04:36 AM  
Nature Peach Blush
Posted By Yaro
Replies: 4
Views: 1,620
Good colors. I think it would be nicer with a more open aperture to blur the background a bit more. It's a bit distracting right now.
Forum: Post Your Photos! 10-03-2010, 04:34 AM  
Nature heron togetherness...
Posted By Yaro
Replies: 10
Views: 1,745
Oh, thought it said "heroin".

Still cool photos though.
Forum: Post Your Photos! 10-03-2010, 04:19 AM  
Nature Yep, still the best 50mm ever.
Posted By Yaro
Replies: 1
Views: 1,370
So I decided I've been playing too much with modern lenses lately. Took out my old time favorite, and remembered why it's so freaking awesome.







ALSO: can someone can help me with why the colors of this image change when on the web? Second image was converted to SRGB and looks like original, first was saved as normal jpg in photoshop CS5




Crop at f1.4:
Forum: Post Your Photos! 10-01-2010, 08:04 PM  
Misc The last week: from country to city (9 images)
Posted By Yaro
Replies: 7
Views: 2,041
1,3 and 9 are really well executed.
Forum: Post Your Photos! 10-01-2010, 07:55 PM  
Macro Searching for color
Posted By Yaro
Replies: 1
Views: 1,124
Went out for a macro session with my handheld rig. Found some really nice bugs and locations for standout/complimentary colors. I have to admit, I played a bit with point/parametric curves, but did not touch hue/saturation/vibrance etc.

Photos were taken using directed diffused flash.

Each photo is a crop of roughly 3000 pixels wide (out of 4000)























Forum: Post Your Photos! 10-01-2010, 07:42 PM  
Macro I don't usually post photos of flowers, but...
Posted By Yaro
Replies: 6
Views: 1,865
Damn you nature! Stop spoiling my images with your damn over-saturation!

and nope, I didn't change the colors of these :)
Forum: Post Your Photos! 10-01-2010, 07:41 AM  
Macro I don't usually post photos of flowers, but...
Posted By Yaro
Replies: 6
Views: 1,865
Thanks, I didn't think the photos would work due to the similarity of colours, but he difference in brightness seems to of worked well.
Forum: Post Your Photos! 10-01-2010, 07:40 AM  
Macro Itzy Bitzy spiders
Posted By Yaro
Replies: 3
Views: 1,454
Cheers! Just wish there were bigger spiders, but they're all hiding from me :(
Forum: Post Your Photos! 09-30-2010, 04:23 AM  
Black & White Ocean Scenes
Posted By Yaro
Replies: 19
Views: 6,399
Wow, truly great shots.
Forum: Post Your Photos! 09-30-2010, 04:17 AM  
Macro Itzy Bitzy spiders
Posted By Yaro
Replies: 3
Views: 1,454
Managed to get a really good night time handheld rig going. Magnification of 1.5:1
Results:









Forum: Post Your Photos! 09-30-2010, 04:12 AM  
Macro I don't usually post photos of flowers, but...
Posted By Yaro
Replies: 6
Views: 1,865
But I actually kinda liked these.






Forum: Pentax SLR Lens Discussion 09-30-2010, 12:58 AM  
How to really identify a early Super Takumar 1.4/50 8 Element
Posted By Yaro
Replies: 70
Views: 54,324
I'm contributing to this thread with some images I have shot with one of my 8 element 50/1.4's.

It is by far my favorite "arty" lens.
The speeds these were shot at are 1/4000, 1/2000, 1/4000,1/1500. I'm guessing 1 and 4 are wide open, 2 maybe @ f2 and 3 at f8. Camera is k100d.

1

2

3

4


100% crops:



Forum: Sold Items 09-28-2010, 03:13 PM  
For Sale - Sold: Tamron 90mm macro; Sigma 50mm macro
Posted By Yaro
Replies: 14
Views: 6,072
I use the tamron as my main macro and portrait lens. Many reviews say it is superior to the pentax 100mm macro.
Forum: Post Your Photos! 09-27-2010, 06:15 AM  
Macro Joined at the hip
Posted By Yaro
Replies: 6
Views: 1,766
Thank you. Anyone have any advice on reducing shake on handheld shots at around 1/180 speed?
Forum: Post Your Photos! 09-25-2010, 07:43 PM  
Macro Joined at the hip
Posted By Yaro
Replies: 6
Views: 1,766
Hi
Here are two shots from my first play with a new macro setup:










and a 100% crop:
Forum: Photographic Technique 09-24-2010, 01:33 AM  
DOF vs lens zoom (& reversed lenses) -technical discussion
Posted By Yaro
Replies: 6
Views: 4,406
Wow, thanks for the info guys, lots of stuff I didn't know.

As in regard to DOF at the same aperture for varying focal lengths, I'll have to test myself if it's much of a difference. If I can achieve 2 or 3 times the DOF at the same aperture with my DA 35 then I'll probably put up with the non-existent focal distance inconvenience and use that as my main macro lens...

Will report back with some findings this weekend!
Forum: Photographic Technique 09-24-2010, 01:21 AM  
First event shoot tomorrow, advice welcome.
Posted By Yaro
Replies: 1
Views: 1,699
Hi fellow pentaxians.
Tomorrow I am spending nearly all day at the casino shooting their Football Grand Final celebrations. I will be doing a fair bit of walking around, and want to keep my kit light. All of the photography will be indoors at distances 2-20m, and mostly of events as opposed to portraiture. I should not use a flash.

My relevent equipment list is as follows:
Pentax K-x (white)
Pentax k100d
Pentax DA 35mm ltd macro
Tamron 90mm di sp macro
Pentax DA 18-55 AL II
Pentax DA 18-55 AL
Pentax 50mm f1.4 manual prime

other:
external hotshoe mounted flash
2x sets eneloop battereies
2x flash memory cards

I was thinking I will only bring my k-x with the DA 35mm & 90mm tamron, spare batteries and memory.

Since this is my 1st event, would any of you kind people have advice?


Cheers

Yaro
Forum: Post Your Photos! 09-22-2010, 06:57 AM  
Macro DA 35mm ltd test
Posted By Yaro
Replies: 3
Views: 1,561
1 more photo I snapped up today while testing.
f19, 1/180, 1.5:1 ratio, downward flash.


100% crop, no PP at all:


If anyone knows much about DOF vs focal length and in reversed lenses, could you please check out my topic here:
https://www.pentaxforums.com/forums/general-photography/115293-depth-field-vs...iscussion.html
Forum: Photographic Technique 09-22-2010, 04:37 AM  
DOF vs lens zoom (& reversed lenses) -technical discussion
Posted By Yaro
Replies: 6
Views: 4,406
I realise the working distance varies greatly, but what I was surprised to see is that at 1:1 magnification, the 35mm had a larger *calculated* DOF than the 90mm. Is this correct?
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