Macro Photography, using extension tubes

Extension tubes

"
The cheapest tube set with electric contacts is about $60 to $70 I understand. At least, it was that a couple of months ago, although prices may have gone up by now. Just check Amazon or the B&H site. For a good set but more expensive, get a Kenko 3 tube set (plastic), and if you want metal the only option is Canon. However, with a 40 mm you could just get away with a 12 mm tube to begin with anyway. As this lens has an MFD of 25 cm, a 12 mm tube at MFD will give you a new MFD of approximately 175 mm with 113 mm WD and a magnification of 1:0.55, or slightly better than half size. A 25 mm tube 161 mm MFD, 86 mm WD, and magnification of 1:0.875. A 30 mm tube will provide you with 1:1 for this lens.
"
"
The most important aspect of having tubes with contacts is the ability to control the aperture on an EF or EF-S lens."

Caminho Português de Santiago pela Costa

Seguindo o caminho central até S. Pedro de Rates:

http://pt.wikiloc.com/wikiloc/view.do?id=3001949

262km; 2.900mts desnível positivo acumulado.


ou indo logo para a costa pela Póvoa de Varzim (track em baixo só até Caminha, mas a continuação é igual ao anterior):

http://www.gpsies.com/map.do?fileId=xbqrrborsaybdjro

Açores

 "Já percebi que o que as ilhas têm de mais belo e as completa é a ilha que está em frente", Raul Brandão

hincentives_what_really_makes_people_work_hard

hincentives_what_really_makes_people_work_hard

reason drives conclusion
emotion drives behavior

ocitocina - empatia
dopamina - cognição, memória

Project Communication

project-communications-a-plan-for-getting-your-message-across

the future of management - Gary Hamel

Gary Hamel - Future of management << quotes and preface

In The Future of Management, Gary Hamel argues that organizations need management innovation now more than ever. Why? The management paradigm of the last century—centered on control and efficiency—no longer suffices in a world where adaptability and creativity drive business success. To thrive in the future, companies must reinvent management.


"how do you build organizations that are as nimble as change itself"

 “Like the combustion engine, it's a technology that has largely stopped evolving, and that's not good.” What then does the future of management hold? Hamel timidly won't say. “My goal in writing this book was not to predict the future of management, but to help you invent it,” he wrote. Useful things to bear in mind, he suggested, are the need for companies to have purpose, to seek out ideas from the fringes, and to embrace the democratising power of the internet.

Astrofísica por Neil deGrasse Tyson

Astrofísica explicada descomplicada!

matthieu ricard on the habits of happiness

hmatthieu_ricard_on_the_habits_of_happiness

notas:

well being: serenity and fulfillment.

+ doing good; unselfishness; generosity; love
- rage; hanger; jealousness; hate


good and bad emotions cannot coexist at same time > antidots to bad emotions > nurture good emotions > mind training

meditation > mind transformation ... takes time ... > get into uncnditional kindness

Composição de imagem por Steve McCurry

9 Photo Composition Tips (feat. Steve McCurry):

https://youtu.be/7ZVyNjKSr0M

Lezírias da Ponta da Erva

Local para observação /fotografia de aves - fotografia nas Lezírias, perto de Vila Franca de Xira.

Aves de Portugal - Lezírias da Ponta da Erva