Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-26-2013, 12:44 PM   #16
Pentaxian
mgvh's Avatar

Join Date: Sep 2010
Location: MD
Photos: Gallery | Albums
Posts: 827
And while you are at it, I recommend a ring flash / light. I went w/ an inexpensive one, and it works fine, but you probably want one that can function simply as an LED ring light. (Ie, not necessarily flash. The light makes for much more reliable metering. I also like one that allows you to illumine just one side or the other of the light so that can get some shadows to show depth if you want.) HERE is a review of the one I got.

07-26-2013, 03:53 PM   #17
Veteran Member
Anvh's Avatar

Join Date: Sep 2011
Posts: 4,616
QuoteOriginally posted by mgvh Quote
And while you are at it, I recommend a ring flash / light. I went w/ an inexpensive one, and it works fine, but you probably want one that can function simply as an LED ring light. (Ie, not necessarily flash. The light makes for much more reliable metering. I also like one that allows you to illumine just one side or the other of the light so that can get some shadows to show depth if you want.) HERE is a review of the one I got.
Good advice but don't go for a led system if you need to work colour accurate because those cheap leds won't do you anything good. It's almost like using natrium streetlight as your light source.
07-27-2013, 11:06 AM   #18
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,208
In regards to focal length vs. working distance and also why a ring light is a good idea, here is my 50mm Sigma doing a little 1:1 work.



There is also a strong case for using a focus rail if fixed magnification is desired. At high magnification, it is much easier to focus by moving the full assembly (camera + lens) or even the subject as opposed to the lens elements. That is why a dual rail (top/bottom) bellows is a good thing.


Steve
07-30-2013, 02:46 PM   #19
New Member




Join Date: Sep 2011
Location: Bristol, UK
Posts: 17
Original Poster
Re copy stands - is it something like this I am looking for? Is this one any good?

Rocwing Rocwing Pro Copy Stand M + Quick release Plate: Amazon.co.uk: Camera & Photo

07-30-2013, 03:49 PM   #20
Veteran Member
Anvh's Avatar

Join Date: Sep 2011
Posts: 4,616
It should be long enough for 100mm macro but the reviews say it'ss not a solid stand...
07-30-2013, 03:53 PM   #21
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,314
QuoteOriginally posted by Redundant Banker Quote
Re copy stands - is it something like this I am looking for? Is this one any good?

Rocwing Rocwing Pro Copy Stand M + Quick release Plate: Amazon.co.uk: Camera & Photo
These can work, but I prefer to make one from an old enlarger with a sloping column, because it ensures that the base of the column is always outside the FOV of the lens.

One thing to consider is for copy stand work, is shorter focal lengths work better for some copy work because you achieve the magnification with a shorter column height.

Also consider a right angle finder, preferably with some magnification and a good diopter adjustment.
07-30-2013, 04:14 PM   #22
Veteran Member
Anvh's Avatar

Join Date: Sep 2011
Posts: 4,616
Shouldn't liveview with the zoom function not be handier then a viewfinder in this situation?
07-30-2013, 07:34 PM   #23
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,314
QuoteOriginally posted by Anvh Quote
Shouldn't liveview with the zoom function not be handier then a viewfinder in this situation?
Copy stand is usually on a bench and hard to get above the camera

07-30-2013, 07:44 PM   #24
Pentaxian
Not a Number's Avatar

Join Date: Mar 2012
Location: Venice, CA
Posts: 3,897
It would be nice if Pentax would support Liveview tethering as some of the competition does. It might work with pk_tether but the author warns not to do it.
07-30-2013, 11:21 PM   #25
Veteran Member
Anvh's Avatar

Join Date: Sep 2011
Posts: 4,616
QuoteOriginally posted by Lowell Goudge Quote
Copy stand is usually on a bench and hard to get above the camera
You have mirrors for the LCD
Or else you can always fixed a television to it.
07-30-2013, 11:22 PM   #26
Veteran Member
Anvh's Avatar

Join Date: Sep 2011
Posts: 4,616
QuoteOriginally posted by Not a Number Quote
It would be nice if Pentax would support Liveview tethering as some of the competition does. It might work with pk_tether but the author warns not to do it.
HDMI should work
07-31-2013, 03:31 AM   #27
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,314
QuoteOriginally posted by Not a Number Quote
It would be nice if Pentax would support Liveview tethering as some of the competition does. It might work with pk_tether but the author warns not to do it.
This is the one point where the moveable and articulated viewing screen would be a benefit
07-31-2013, 03:53 AM   #28
Pentaxian
Fogel70's Avatar

Join Date: Sep 2009
Location: Stockholm, Sweden
Photos: Albums
Posts: 1,737
IMO DA 35/2.8 Macro work very well for plants and flowers where you don't need longer working distance.
The shorter focal length makes it easier to hand hold and you might not need to stop the lens down as much as you would with longer focal length. And sometimes it's also a advantage to have wider FOV of shorter focal length.
07-31-2013, 03:57 AM   #29
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,314
QuoteOriginally posted by Fogel70 Quote
IMO DA 35/2.8 Macro work very well for plants and flowers where you don't need longer working distance.
The shorter focal length makes it easier to hand hold and you might not need to stop the lens down as much as you would with longer focal length. And sometimes it's also a advantage to have wider FOV of shorter focal length.
Not sure why you believe a shorter focal length makes it easier to hand hold. At any magnification the impact of camera shake is related to the magnification of the image and nothing else, although the shorter focal length is lighter ........ Usually
07-31-2013, 04:10 AM   #30
Site Supporter




Join Date: Apr 2011
Photos: Albums
Posts: 2,880
I recently needed to make some macro shots of some resistors for a lecture I will be giving next week. The smallest was a 1/8W resistor (axial leads) which has a length equal to the "zab" in the queen's name on the Australian 5c coin. I used a SMC Takumar 50/4 macro mounted on bellows, fully extended. The lens was taking an angled view of the resistor laying on the coin with the bellows extended enough that the front rim of the lens was nearly touching the subject (the vanity ring has a very deep recess to the fron element). I used a lamp for illumination which was still tricky to get light on the subject and not get a shadow of the lens in the frame.

Nice lens that I had picked up less than a year ago for USD50-60.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
100mm, coins, k-mount, length, lens, macro, pentax lens, photograph, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sharpest focal length for Tamron 70-200 2.8 macro outsider Pentax SLR Lens Discussion 10 04-23-2012 05:17 AM
What is the Best Focal Length for a Portrait Lens? Drom Pentax SLR Lens Discussion 94 04-22-2012 02:00 PM
Best focal length for street photography? Walter Sobchak Photographic Technique 19 01-20-2012 02:15 PM
What Focal Length for first macro?? GDRoth Pentax SLR Lens Discussion 27 08-05-2011 02:53 PM
Best Focal Length for Portaits vize Pentax SLR Lens Discussion 16 04-09-2010 10:59 AM



All times are GMT -7. The time now is 11:26 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top