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Forum: Troubleshooting and Beginner Help 09-16-2018, 04:22 AM  
K-1 not recognising Samyang lenses
Posted By olepap
Replies: 4
Views: 475
I use samyang lenses on a K-1 mark I and it ask me the focal length when I switch the camera on.


Is shake reduction switched on on your K20D? If I remember correctly my K200D did not ask the focal length when shake reduction was switched of.

I select the focal length closest to the lens (15 for the 14mm lens) which makes it easier to remember what lens I was using. But I think it is safer to select a shorter focal length, so the shake reduction does not overcompensate.
Forum: Sold Items 09-14-2018, 12:46 PM  
For Sale - Sold: SMC Pentax-DA 21mm F3.2 Limited
Posted By olepap
Replies: 0
Views: 448
PentaxForums.com Marketplace Listing

Item for Sale
SMC Pentax-DA 21mm F3.2 Limited

Asking Price
200.00 EUR

Item Location
Birkerød (Denmark)

Item Description
Lens is in very god condition.
It has one very small mark in the edge of the lens cap. Not bigger than 0,5 x 1 mm and the black paint is still there. I will try to take a picture of it.
I cant see any other scratches or signs of use.

Are you the original owner of the item being sold?
Yes

Are you selling or trading this item?
Selling

Item Condition (Key)
Used
Excellent

Shipping Destinations
Worldwide

Shipping Charge
35 (8 without track and trace)

Shipping Services
Parcel with Track & Trace

Accepted Payment Types
PayPal

Return Policy & Additional Details
Let me know if you prefer other types of payment or shipping.

Please send me a private message if interested in the item!
Forum: Digital Processing, Software, and Printing 07-29-2018, 12:55 PM  
Focus stacking on Linux
Posted By olepap
Replies: 14
Views: 1,733
I have had some success using hugin in the terminal. First align_image_stack and then enfuse. Sometime it works very good. Other times it does not work, and I find it very difficult to make it work. I have some notes about it saved somewhere - I will see if I can find them.

Align image stack - PanoTools.org Wiki
http://hugin.sourceforge.net/docs/manual/Enfuse.html
https://patdavid.net/2013/01/focus-stacking-macro-photos-enfuse.html


Zerene Stacker is much easier to use and more often gives a good result. It is not free, but it saves time and frustration.

stacker [Zerene Stacker]
Forum: Sold Items 02-15-2018, 01:03 PM  
For Sale - Sold: SMC Pentax-DA* 300mm F4 ED [IF] SDM
Posted By olepap
Replies: 1
Views: 650
More pictures showing the lens, the bag and the box.
UV-filter is included. Hoya HMC UV(c) 77mm.
Forum: Sold Items 02-11-2018, 11:55 AM  
For Sale - Sold: SMC Pentax-DA* 300mm F4 ED [IF] SDM
Posted By olepap
Replies: 1
Views: 650
PentaxForums.com Marketplace Listing

Item for Sale
SMC Pentax-DA* 300mm F4 ED [IF] SDM

Asking Price
660.00 EUR

Item Location
Birkerød (Denmark)

Item Description
I am selling my used, but in in very good condition, SMC Pentax-DA* 300mm F4 ED [IF] SDM.
There is a marking on the side of the lens hood (see photo). No other signs of usage. I can send more photos if you are interested.
Original front and rear caps included. Soft bag (Pentax S100-200) and the cardboard box are included.

Are you the original owner of the item being sold?
Yes

Are you selling or trading this item?
Selling

Item Condition (Key)
Used
Like New

Shipping Destinations
Europe Only

Shipping Charge
40

Shipping Services
Parcel with Track & Trace

Accepted Payment Types
PayPal

Return Policy & Additional Details
Please ask me about shipping to other parts of the world, if you are interested.

Please send me a private message if interested in the item!
Forum: Sold Items 03-13-2016, 06:04 AM  
For Sale - Sold: Book: The Ultimate Asahi Pentax Screw Mount Guide 1952 - 1977
Posted By olepap
Replies: 2
Views: 1,349
PentaxForums.com Marketplace Listing

Item for Sale
Book: The Ultimate Asahi Pentax Screw Mount Guide 1952 - 1977

Asking Price
70.00 EUR

Item Location
Denmark (Denmark)

Item Description
I have a few copies of this book about all the Asahi Pentax screw mount cameras and lenses.
I only need one copy, so I would like to sell the other copies.
The books are like new.

Are you the original owner of the item being sold?
No

Are you selling or trading this item?
Selling

Item Condition (Key)
Used
Like New

Shipping Destinations
Worldwide

Shipping Charge
10 eur in Europe, 16 eur in America

Shipping Services
Post Danmark A/S

Accepted Payment Types
PayPal

Return Policy & Additional Details
no returns

Please send me a private message if interested in the item!
Forum: Pentax SLR Lens Discussion 11-17-2013, 11:46 AM  
smc DA lens diagrams
Posted By olepap
Replies: 5
Views: 1,471
Thank you. I had never noticed those links before.
And whitemetal.com has alot of m42 lens diagrams.

I also noticed how similar the wide angle zooms are compared to the telephoto zooms. I thought longer focal lengths were simpler, and therefore would look more like each other.
Forum: Pentax SLR Lens Discussion 11-17-2013, 06:24 AM  
smc DA lens diagrams
Posted By olepap
Replies: 5
Views: 1,471
Somewhere on a pentax website there is a brochure called Lenses and Accessories.
On page 28-29 there are some nice drawings of the lens layout i the DA lenses.

I have uploaded the drawings for easier access here: Pentax smc DA lens construction from pentax brochure - Imgur

Some of the elements are brown, green or blue. I think blue means ED and green aspherical.
There are brown elements in the 55mm and 18-55mm - anyone knows what they are?

I like these kind of schematics. Are there similar collections of drawings for other lens series?
Forum: Post Your Photos! 07-28-2013, 05:37 AM  
Macro Love the old M50
Posted By olepap
Replies: 7
Views: 469
Very nice looking, sharp and detailed pictures. No. 2 is my favorite.
I too like using ordinary, non-macro lenses with extension tubes - smc-m 135mm 3.5 and 20mm extension is my favorite (for butterflies).
It looks like you used flash and a very small aperture for these photos. May I ask what kind of flash and what distance you have from the flash to the flies? Do you hold the flash in one hand and the camera in the other?
I never use flash, but the large dof in your photos makes me think that maybe I should try it. Can you get the black/dark backgrounds in full sunshine?
Forum: Digital Processing, Software, and Printing 07-27-2013, 11:56 AM  
Slow colour curves in gimp on linux
Posted By olepap
Replies: 7
Views: 1,290
Thank you very much. It made my curves tool quicker too.
One small thing to be aware of, is that it deletes other tool-options too (which can be saved via Edit - Preferences - Tool Options).
The solution is to have gimp open while you delete the settings-file, and then click 'Save Tool Options Now'.
Thanks again for sharing.
Forum: Pentax SLR Lens Discussion 07-17-2013, 12:33 AM  
Schematics of Helios 44M 2/58mm
Posted By olepap
Replies: 11
Views: 5,091
Hello
I have cleaned and lubed my helios 44m, and I had no problems reassembling it. So maybe I can help you.
My initial thought is that you have put the focus-helicoid together in the wrong place - try to screw the two parts apart, turn them 180 degrees further, and then screw them back together.
I hope you understand what I am trying to say.
I can take pictures, when I get home (in a few days).
Or maybe you can post a picture of the lens, when it is disassemblied and focused to infinity.
Forum: Pentax Forums Giveaways 07-03-2013, 11:23 AM  
Ricoh GR Digital IV Giveaway: Ending 7/8/2013!
Posted By olepap
Replies: 630
Views: 83,642
Forum: Post Your Photos! 07-02-2013, 12:15 PM  
Nature Common Redshank (Tringa totanus)
Posted By olepap
Replies: 0
Views: 379
One of my recent favorite photos for the Ricoh GR Digital IV Giveaway.



Camera used, Pentax K200D
Used Pentax Cameras | Buy, Compare & Review | Adorama

Lens used, Super-Takumar 1:4/300
Used Pentax Fixed Lenses | Buy, Compare & Review | Adorama
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