Lives in United States San Jacinto, CA, United States
Works as a Retired engineer
Has a website at www.lawrencehelm.smugmug.com
Joined on Dec 14, 2010
About me:

Former Marine, former engineer at Douglas, McDonnell Douglas & Boeing for 39 years and in retirement enjoy hiking with my Rhodesian Ridgebacks & others. Enjoy taking photos on the hikes and since 1979 have had Olympus cameras (beginning with the RC 35). When Olympus gave up on the DSLR I began adding Pentax DSLRs which seemed to me a logical progression from what I have been used to and indeed that is as it proved. Most recently I've been adding Nikon gear.

Historicity's current gear

Nikon D200
Nikon D300
Nikon D300S
I have two D200's.
Only 150 clicks when I got this one on eBay, but the multifunction switch sticks & so I got a D300 to use -- I expect to send the D300s in for repair at some point.
Nikon D500
Nikon D610
Nikon D700
I have two D700's.
Nikon D800E
Nikon Df
Olympus E-1
I have two E-1's.
Olympus E-3
Olympus E-420 (EVOLT E-420)
Olympus E-5
Mine doesn't have a battery grip.
Olympus E-500 (EVOLT E-500)
Olympus E-600 (EVOLT E-600)
Olympus OM-D E-M1
love the CCD color, but hate the viewfinder.
I have two OM-D E-M1's.
Olympus OM-D E-M5 II
Olympus PEN E-PM2
Pentax K-1 Mark II
Pentax K20D
Pentax K-3
Pentax K-3 II
Pentax K-5 IIs
Pentax K-70
Pentax KP
Pentax K-S1
HD Pentax  DA 55-300mm F4.0-5.8 ED WR
HD Pentax DA 15mm F4 ED AL Limited
HD Pentax DA 16-85mm F3.5-5.6 ED DC WR
HD Pentax DA 21mm F3.2 AL Limited
HD Pentax DA 35mm F2.8 Macro Limited
HD Pentax DA 40mm F2.8 Limited
HD PENTAX-D FA 28-105mm F3.5-5.6 ED DC WR
Nikon AF Micro-Nikkor 60mm f/2.8D
Nikon AF Nikkor 180mm f/2.8D ED-IF
Nikon AF Nikkor 35mm f/2D
Nikon AF-P DX Nikkor 70-300mm F4.5-6.3G VR
Nikon AF-S DX Nikkor 16-85mm f/3.5-5.6G ED VR
Nikon AF-S DX Nikkor 35mm F1.8G
Nikon AF-S DX Nikkor 55-300mm f/4.5-5.6G ED VR
Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR
Olympus M.Zuiko Digital 14-42mm 1:3.5-5.6 II R
Olympus M.Zuiko Digital ED 12-40mm F2.8 Pro
Olympus M.Zuiko Digital ED 12-50mm 1:3.5-6.3 EZ
Olympus M.Zuiko Digital ED 14-42mm 1:3.5-5.6
Olympus Zuiko Digital 14-54mm 1:2.8-3.5 II
Olympus Zuiko Digital 25mm 1:2.8 Pancake
Olympus Zuiko Digital 35mm 1:3.5 Macro
Olympus Zuiko Digital ED 12-60mm 1:2.8-4.0 SWD
Olympus Zuiko Digital ED 18-180mm 1:3.5-6.3
Olympus Zuiko Digital ED 40-150mm 1:4.0-5.6
Olympus Zuiko Digital ED 50mm 1:2.0 Macro
Olympus Zuiko Digital ED 9-18mm 1:4.0-5.6
Pentax smc DA 16-45mm F4 ED AL
Pentax smc DA 18-135mm F3.5-5.6ED AL [IF] DC WR
Pentax smc DA 18-250mm F3.5-6.3
Pentax smc DA 18-55mm F3.5-5.6 AL WR
Pentax smc DA 35mm F2.4 AL
Pentax smc DA 35mm F2.8 Macro Limited
Pentax smc DA 40mm F2.8 XS Lens
Pentax smc DA 50mm F1.8
Pentax smc DA 70mm F2.4 AL Limited
Pentax smc DA* 55mm F1.4 SDM
Pentax smc DA* 60-250mm F4.0 ED (IF) SDM
Pentax smc D-FA 100mm F2.8 Macro WR
Pentax smc FA 31mm F1.8 AL Limited
Pentax smc FA 43mm F1.9 Limited
Pentax smc FA 50mm F1.4
Pentax smc FA 77mm 1.8 Limited
Samyang 35mm F1.4 AS UMC
Samyang 85mm F1.4 Aspherical IF / Rokinon 85mm F1.4
Tamron AF 28-200mm F/3.8-5.6 XR Di Aspherical (IF) Macro
Tamron SP 90mm F2.8 Di VC USD 1:1 Macro
My lens doesn't list "VC"
Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF)
Tokina AT-X 70-200mm F4 PRO FX VCM-S
Tokina AT-X Pro 100mm f/2.8 Macro
Voigtlander 90mm F3.5 APO-Lanthar SL II
Silkypix Developer Studio Pro
Topaz Adjust
I have the SL and not the SL II
Studio Pro 9
Topaz B&W effects
Topaz Clean
Topaz DeNoise
Topaz Lens Effects
Topaz ReMask
Topaz Simplify
Topaz Star Effects
Other gear:
  • SMC Pentax-F 50mm f/1.4
  • Corel PaintShop Pro 2019
  • DxO PhotoLab 2
  • Lightroom 6
  • Luminar 3
  • Nikon AF Micro Nikkor 60mm f/2.8 D
  • Nikon AF Nikkor 28-105mm f/3.5-4.5D Macro
  • Nikon Nikkor 135mm f/3.5
  • Nikon Nikkor 200mm f/4
  • Nikon Nikkor 35-70mm f/2.8
  • Rokinon 8mm F3.5 Aspherical Fisheye
  • Silkyix Developer Studio Pro 9
  • SMC Pentax FA 1:2 35mm AL
  • SMC Pentax FA 135mm f/2.8
  • SMC Pentax FA 24-90mm IF & AL
  • SMC Pentax FA 50mm f/1.7
  • SMC Pentax FA* 200mm f/2.8
  • SMC Pentax FA* 24mm f/2
  • SMC Pentax FAJ 18-35mm AL
  • SMC Pentax-A 35-105mm f/3.5
  • SMC Pentax-F 24-50 f/1:4
  • SMC Pentax-F 35-135mm f/3.5-4.5 macro
  • SMC Pentax-F 35-70 f/3.5 - 4.5
  • SMC Pentax-F 35-70mm f/3.5 - 4.5
  • SMC Pentax-F 70-210mm f/4 - 5.6
  • SMC Pentax-F 80-200mm f/4.7 - 5.6
  • SMC Pentax-FA 100-300mm f/4.5-5.6
  • SMC Pentax-FA 28-80mm f/1:3.5-5.6
  • SMC Pentax-FA 35-80mm f/1:4-5.6
  • SMC Pentax-FA 80-320mm f/1:4.5-5.6
  • SMC Pentax-M 1:2 50mm
  • SMC Pentax-M 28mm f/3.5

Historicity's previous gear

Olympus E-300 (EVOLT E-300)
Olympus E-330 (EVOLT E-330)
Pentax K-7
Pentax K-5
Nikon D600
Pentax K-S2
I bought this used from a seller who presented a colorful positive idea of its condition, an idea that turned out to be erroneous. I gave it to my son who likes to work on cameras in beat-up condition.
Pentax K-1
Pentax smc DA 18-55mm F3.5-5.6 ED AL II (IF)
Pentax smc DA 55-300mm F4.0-5.8 ED
The K1 is previous gear only because I had it upgraded to a K1ii.
Sigma 18-125mm F3.8-5.6 DC OS HSM
Sigma 50-200mm F4-5.6 DC OS HSM
Olympus M.Zuiko Digital 14-42mm 1:3.5-5.6 II
HD PENTAX-DA 55-300mm F4.5-6.3 ED PLM WR RE
Had an unreliable AF. Returned it and decided to stick with the earlier model.
Other gear:
  • Olympus Zuiko Digital 17.5-45mm
  • Quantaray AF 28-80mm f/3.5-5.6
  • Sigma DC 50-200mm HSM f/4-5.6
  • Sigma DG 28-300mm f/3.5-6.3
  • SMC Pentax-M 50mm f/2