Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-13-2007, 07:53 PM   #31
Site Supporter
Site Supporter




Join Date: Sep 2006
Location: midwest, United States
Photos: Gallery
Posts: 3,341
What is the final use for the images? Will it be on a website or large prints? If website I wouldn't bother with a macro lens. This from a guy who owns 5. Take your 50 1.7 and a set of extension tubes. This will give a macro lens a run for its money resolution wise. Don't spend a bunch of money untill it proves needed. For jewelry would rather have extension tubes and focus slider than macro. It would be very hard to tell difference between macro and 50 1.7 on website. It is actually hard to tell in prints as long as subject isn't flat (like old prints).
Have been helping people do some jewelry shots. It is a learning experience. We are using three continuous lights. One to each side and in front of subject and one on the back ground. The background is white. We took a piece of white copy paper and cut a small slit in it to mount a clear ring holder. The copy paper was folded in half and taped. This sets on the white background and can be slid back and forth to achieve focus. Have found this as easy as using the focus slider! The lights are the Cloud Dome flourescents. They have good color balance for diamonds. They aren't as manueverable as some setups. These people had us shooting rapid shots 30 pieces an hour. It works pretty well. We shot them all at 6mp. It was a waste for the website. Ended up using 4mp. Can't tell the diff on the site. Might try 2mp next. Websites don't want huge file sizes or it takes to long for people to down load. Hope this helps.
thanks
barondla

12-13-2007, 07:59 PM   #32
Veteran Member




Join Date: Oct 2007
Location: nyc
Photos: Gallery
Posts: 564
Original Poster
that use is still TBD, but odds are it's going to be emailed to customers, and if i can convince him perhaps some website--if i feel like putting one together for him.

for me, its experience. if i get good enough to make something more than that, great
12-17-2007, 04:14 AM   #33
hll
Senior Member




Join Date: Apr 2007
Location: new york
Photos: Gallery
Posts: 297
i appreciate your sharing, brondla!!!
it is quite helpful...
halil
12-17-2007, 07:15 AM   #34
Veteran Member
Nesster's Avatar

Join Date: Oct 2006
Location: NJ USA
Photos: Gallery
Posts: 13,047
I was inspired by all this to trot out the various macro setups I have (with extremely primitive lighting: mainly available light, though through large windows on two sides)...

report: Tamron SP 90 2.5 + 2x flat field converter: too long! Had to back way off to get a reasonably sized brooch fully in pic. Plus the whole thing's too heavy for my puny tripod.

Tamron SP 90 by itself: better! Reasonable working distance. However, I find manual focus with the K100D can produce unpredictable results. The in-focus flash in the viewfinder isn't always fully accurate. Flash integration with the K-A mount is decent though.

Super-Takumar 50/1.4 + extension tube. Similar focus problems as with the Tamron, and there's little flash automation (with my set up, with an auto thyrsistor controlled by the flash it should be better). The working distance is fairly close - a 12mm extension tube is sufficient.

Schneider Componon 35mm enlarger lens, held to the 12mm extension tube. This one surprised me, I was expecting a bit further focus... extreme close up, greater than life size, had to get pretty close to the subject. Nice results - I could see temporarily attaching this with bubble gum without the tube for some fun.

Overall, I'm not overjoyed with the results - it was during the weekend nor'easter so light wasn't great, the tripod really is too puny - but it was fun. Thanks for the inspiration!

Samples of the main two setups:


http://farm3.static.flickr.com/2039/2117842482_3d1fe1a954.jpg

And the close up produced by the Schneider, these are tiny rhinestones



Based on this, I think a 50mm will give you a 6-10 inch working distance.

12-17-2007, 08:50 PM   #35
Senior Member
digitaldevo's Avatar

Join Date: Oct 2007
Location: PA, USA
Photos: Gallery | Albums
Posts: 154
Yes, the GBJ site is active, just have not got it updated for my Wife. I suffer from RSD and have been bed ridden for a long while now, sadly. Just drop her an email. Thank you for the compliment. I try my best.
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!
k-mount, lens, lenses, opportunity, pentax lens, pictures, purchase, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
high-key jewelry look uccemebug Photographic Technique 49 02-03-2010 08:14 PM
Children's Jewelry graphicgr8s General Talk 48 01-12-2010 09:27 PM
Misc Jewelry scott-devon Post Your Photos! 7 01-01-2010 11:40 AM
First few macro jewelry shots terret Post Your Photos! 10 01-26-2009 09:06 PM
Jewelry Photography PaulAndAPentax Post Your Photos! 8 11-28-2007 04:43 PM



All times are GMT -7. The time now is 04:42 AM. | See also: NikonForums.com, CanonForums.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