Photo Stacking / Focus Stacking

Kegunaan saya.

Dalam fotografi macro, objek yang selalu saya gambar adalah serangga, so I usually use shallow depth of field (nilai f-stop lebih kecil) to make the small object stands out, as many macro photographer would do. Menggunakan nilai f-stop yang kecil juga boleh menghasilkan latar belakang kabur yang agak menarik.

The negative side is, using low f-stop value makes it harder for us to photograph the small object. As I usually focus on the eye of an insect for a photo, i usually take more than 1 photo of an object to get it right, like trying very hard not to shake like an earthquake. Dan juga, selalunya jika kita fokus kepada mata sahaja, other details of the insect seems to be lost. So that's where focus stacking come in handy. See below.

• Photo 1 : Focus hanya kepada pedipalp and tip of the front left leg (see the arrow LOL).
• Photo 2 : Focus to area inbetween eyes and pedipalp and also mid front left leg.
• Photo 3 : Finally focus to the eyes, but it's kinda weird focusing on the eyes and part of the leg, and not the whole face, So lets mix Photo 1, Photo 2 and Photo 3 using Zerene Stacker.
• Photo 4 : Voila! Stacked photo using Zerene Stacker, neat huh. Note the detail stacked from the 3 photos.

 Photo 1

 +

Photo 2

 +

Photo 3

 =

Photo 4

Equipment & setting : Canon 550D + 100mm f2.8  Macro Lens. f6.7 | 1/125 sec | ISO-400 | hand held.

Environment : Morning at about 7.30 a.m., oil palm plantation.

Species : Hyllus sp. (H. diardii possibly).

Tags : Sabah, Macro, Stacking, Fotografi, Photographer Macro, North borneo, labah-labah, tutorial

Useful working file related to Arcmap.

Straight to the point

• .gpx

File ini khusus digunakan dalam alat GPS receiver anda. File ini boleh ditukar kepada shapefile untuk digunakan dalam ArcMap, vice versa jika anda ingin masukkan ke dalam alat GPS receiver, saya akan buat tutorial kemudian. Software yang boleh digunakan untuk view file ini adalah Basecamp (Garmin), Vantagepoint (Magellan) etc. Honestly, I only know about Basecamp.

• .kml / .kmz

File ini khas digunakan dalam software Google Earth. Anda boleh melukis feature di dalam Google Earth, dan kemudian save ia di dalam komputer anda. File ini juga boleh ditukar kepada shp file menggunakan tool dibawah toolbox conversion tools. Terdapat juga tool untuk convert shp file ke kmz untuk anda view di dalam Google Earth. Neat huh. Anyway the .kmz is just a compressed type of .kml. It's kinda da same thing.

• .dwg

Autocad fillllle. File ini sering digunakan oleh jurutera, surveyor etc untuk melukis reka bentuk bangunan mahupun pelan ukur. File ini boleh dibuka menggunakan ArcMap menggunakan "add data" dan boleh diexport kepada shp file untuk digunakan (sangat-sangat berguna). Just remember to turn on da right layer. Please....

Ok that's it

Its a beetle, a Trilobite beetle!

Its not a millipede. For common people who rarely got into the forest and see the wonders inside may call this insect as a type of millipede at first sight.

Because that is what i do. Found this beetle on the ground when going bird watching bordering the Mt. Pock Forest Reserve. I flip it using a stick to see the many legs. Settled with millipede when I saw the leg-like structure under it. A mistake.

Notice the leg-like structure on the left. Thats how I confused it with millipede. How silly.

 Try to ID it for hours using the keyword 'armoured millipede' and 'gonggok hitam'. Didnt work of course.

Anyway its scientific name is Platerodrilus sp. Family Lycidae. Formerly known as Duliticola sp, but the name is no longer used. Duliticola is easier to remember though. Called Trilobite beetle because it resembled the prehistoric creature Trilobite (google it lah).

Enjoy a scenic view of sunrise behind Mt. Pock Forest Reserve.

Let me tag it with using terms i sillyly (lol) googled.

And I will try to update with other things (uhh, my ArcGIS tutorial) 'later'.

An introduction

Having working for about three years (its a short time..meh) as an Environmental Consultant, ive been teaching my colleagues as well as individual about GIS from scratch. Realizing it is hard for them to learn many things in a short time. Not to mention the many repeated questions on GIS. Ive decided to start blogging as a mean to teach, not only to them but many others.

So, my blog will contain stuff about gis tutorial, my interests and maybe more (lets wait and see). I will try to update my blog regularly, so thanks for reading.

(P.s: I will be using ArcGIS 10.1)